DateUtils

java.lang.Object
- com.alibaba.fastjson2.util.DateUtils

```
public class DateUtils
extends java.lang.Object
```
DateUtils provides utility methods for parsing and formatting dates in various formats. It supports multiple date formats including ISO 8601, RFC formats, and custom patterns.
This class offers functionality for:
- Parsing date strings in various formats to Date objects
- Formatting Date objects to date strings
- Working with different time zones and locales
- Handling special date formats like cookies and HTTP headers
- Converting between different date representations
Example usage:
```
 // Parse a date string
 Date date = DateUtils.parseDate("2023-12-25 10:30:45");

 // Format a Date object
 String formatted = DateUtils.formatDate(new Date(), "yyyy-MM-dd HH:mm:ss");

 // Parse with specific format and time zone
 Date date2 = DateUtils.parseDate("2023/12/25 10:30:45", "yyyy/MM/dd HH:mm:ss", ZoneId.of("UTC"));
 
```
Since:

2.0.0

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`(package private) static class`	`DateUtils.CacheDate10`
`(package private) static class`	`DateUtils.CacheDate8`
`static class`	`DateUtils.DateTimeFormatPattern`

Field Summary

Fields
Modifier and Type	Field and Description
`(package private) static java.time.format.DateTimeFormatter`	`DATE_TIME_FORMATTER_34`
`(package private) static java.time.format.DateTimeFormatter`	`DATE_TIME_FORMATTER_COOKIE`
`(package private) static java.time.format.DateTimeFormatter`	`DATE_TIME_FORMATTER_COOKIE_LOCAL`
`(package private) static java.time.format.DateTimeFormatter`	`DATE_TIME_FORMATTER_RFC_2822`
`static java.time.ZoneId`	`DEFAULT_ZONE_ID`
`static java.time.LocalDate`	`LOCAL_DATE_19700101`
`(package private) static int`	`LOCAL_EPOCH_DAY`
`static java.time.ZoneId`	`OFFSET_8_ZONE_ID`
`static java.lang.String`	`OFFSET_8_ZONE_ID_NAME`
`private static int[]`	`POWERS`
`static java.time.ZoneId`	`SHANGHAI_ZONE_ID`
`static java.lang.String`	`SHANGHAI_ZONE_ID_NAME`
`static java.time.zone.ZoneRules`	`SHANGHAI_ZONE_RULES`

Constructor Summary

Constructors
Constructor and Description

DateUtils()

Constructors
Constructor and Description
`DateUtils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`private static long`	`calcEpochDay(int year, int month, int dom)`
`static java.lang.String`	`format(java.util.Date date)`
`static java.lang.String`	`format(java.util.Date date, java.lang.String format)`
`static java.lang.String`	`format(int year, int month, int dayOfMonth)`
`static java.lang.String`	`format(int year, int month, int dayOfMonth, DateUtils.DateTimeFormatPattern pattern)`
`static java.lang.String`	`format(int year, int month, int dayOfMonth, int hour, int minute, int second)`
`(package private) static java.lang.String`	`format(int year, int month, int dayOfMonth, int hour, int minute, int second, DateUtils.DateTimeFormatPattern pattern)`
`static java.lang.String`	`format(java.time.LocalDate localDate, java.lang.String format)`
`static java.lang.String`	`format(java.time.LocalDateTime ldt, java.lang.String format)`
`static java.lang.String`	`format(long timeMillis)`
`static java.lang.String`	`format(long timeMillis, DateUtils.DateTimeFormatPattern pattern)`
`static java.lang.String`	`format(java.time.ZonedDateTime zdt, java.lang.String format)`
`static java.lang.String`	`formatYMD10(java.util.Date date)`
`static java.lang.String`	`formatYMD10(int year, int month, int dayOfMonth)`
`static java.lang.String`	`formatYMD10(java.time.LocalDate date)`
`static java.lang.String`	`formatYMD10(long timeMillis, java.time.ZoneId zoneId)`
`static java.lang.String`	`formatYMD8(java.util.Date date)` Formats a Date object to a string in the format "yyyyMMdd".
`static java.lang.String`	`formatYMD8(java.time.LocalDate date)`
`static java.lang.String`	`formatYMD8(long timeMillis, java.time.ZoneId zoneId)` Formats a timestamp in milliseconds to a string in the format "yyyyMMdd".
`static java.lang.String`	`formatYMDHMS19(java.util.Date date)` Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss".
`static java.lang.String`	`formatYMDHMS19(java.util.Date date, java.time.ZoneId zoneId)` Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss".
`static java.lang.String`	`formatYMDHMS19(java.time.LocalDate localDate)`
`static java.lang.String`	`formatYMDHMS19(java.time.LocalDateTime ldt)`
`static java.lang.String`	`formatYMDHMS19(java.time.ZonedDateTime zdt)`
`static int`	`getShanghaiZoneOffsetTotalSeconds(long seconds)`
`static java.time.ZoneId`	`getZoneId(java.lang.String zoneIdStr, java.time.ZoneId defaultZoneId)`
`static long`	`hms(byte[] bytes, int off)`
`static int`	`hourAfterNoon(char h0, char h1)`
`static boolean`	`isDate(java.lang.String str)`
`static boolean`	`isLocalDate(java.lang.String str)`
`static boolean`	`isLocalTime(java.lang.String str)`
`static java.time.LocalDateTime`	`localDateTime(char y0, char y1, char y2, char y3, char m0, char m1, char d0, char d1, char h0, char h1, char i0, char i1, char s0, char s1)`
`static java.time.LocalDateTime`	`localDateTime(char y0, char y1, char y2, char y3, char m0, char m1, char d0, char d1, char h0, char h1, char i0, char i1, char s0, char s1, char S0, char S1, char S2, char S3, char S4, char S5, char S6, char S7, char S8)`
`static java.time.LocalDate`	`localDateYMD(byte[] bytes, int off)`
`private static java.time.LocalTime`	`localTime(int hour, int minute, int second)`
`static long`	`millis(java.time.LocalDateTime ldt)`
`static long`	`millis(java.time.LocalDateTime ldt, java.time.ZoneId zoneId)`
`static long`	`millis(java.time.ZoneId zoneId, int year, int month, int dom, int hour, int minute, int second, int nanoOfSecond)`
`private static int`	`month(byte c0, byte c1, byte c2)`
`static int`	`month(char c0, char c1, char c2)`
`static int`	`nanos(int value, int nanoSize)`
`static java.util.Date`	`parseDate(java.lang.String str)` Parses a date string to a Date object using default parsing rules.
`static java.util.Date`	`parseDate(java.lang.String str, java.lang.String format)` Parses a date string with the specified format to a Date object.
`static java.util.Date`	`parseDate(java.lang.String str, java.lang.String format, java.time.ZoneId zoneId)` Parses a date string with the specified format and time zone to a Date object.
`static java.util.Date`	`parseDate(java.lang.String str, java.time.ZoneId zoneId)` Parses a date string to a Date object using default parsing rules.
`static java.util.Date`	`parseDateYMDHMS19(java.lang.String str)` Parses a date string in the format "yyyy-MM-dd HH:mm:ss" to a Date object.
`static java.time.LocalDate`	`parseLocalDate(byte[] str, int off, int len)`
`static java.time.LocalDate`	`parseLocalDate(char[] str, int off, int len)` Parses a character array to a LocalDate object using default parsing rules with specified offset and length.
`static java.time.LocalDate`	`parseLocalDate(java.lang.String str)`
`static java.time.LocalDate`	`parseLocalDate10(byte[] str, int off)` yyyy-MM-dd yyyy/MM/dd MM/dd/yyyy dd.MM.yyyy yyyy年M月dd日 yyyy年MM月d日 yyyy MMM d
`static java.time.LocalDate`	`parseLocalDate10(char[] str, int off)` yyyy-MM-dd yyyy/MM/dd MM/dd/yyyy dd.MM.yyyy yyyy年M月dd日 yyyy年MM月d日 yyyy MMM d
`static java.time.LocalDate`	`parseLocalDate11(byte[] str, int off)`
`static java.time.LocalDate`	`parseLocalDate11(char[] str, int off)` yyyy年MM月dd日 yyyy년MM월dd일
`static java.time.LocalDate`	`parseLocalDate8(byte[] str, int off)` yyyy-m-d yyyyMMdd d-MMM-yy
`static java.time.LocalDate`	`parseLocalDate8(char[] str, int off)` yyyy-m-d yyyyMMdd d-MMM-yy
`static java.time.LocalDate`	`parseLocalDate9(byte[] str, int off)` yyyy-MM-d yyyy-M-dd dd-MMM-yy
`static java.time.LocalDate`	`parseLocalDate9(char[] str, int off)` yyyy-MM-d yyyy-M-dd dd-MMM-yy
`static java.time.LocalDateTime`	`parseLocalDateTime(byte[] str, int off, int len)`
`static java.time.LocalDateTime`	`parseLocalDateTime(char[] str, int off, int len)` Parses a character array to a LocalDateTime object using default parsing rules with specified offset and length.
`static java.time.LocalDateTime`	`parseLocalDateTime(java.lang.String str)` Parses a date string to a LocalDateTime object using default parsing rules.
`static java.time.LocalDateTime`	`parseLocalDateTime(java.lang.String str, int off, int len)` Parses a date string to a LocalDateTime object using default parsing rules with specified offset and length.
`static java.time.LocalDateTime`	`parseLocalDateTime12(byte[] str, int off)` parseLocalDateTime use format 'yyyyMMddHHmm'
`static java.time.LocalDateTime`	`parseLocalDateTime12(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime14(byte[] str, int off)` yyyyMMddHHmmss
`static java.time.LocalDateTime`	`parseLocalDateTime14(char[] str, int off)` yyyyMMddHHmmss
`static java.time.LocalDateTime`	`parseLocalDateTime16(byte[] str, int off)` yyyy-MM-ddTHH:mm yyyy-MM-dd HH:mm yyyyMMddTHHmmssZ yyyy-MM-ddTH:m:s yyyy-MM-dd H:m:s
`static java.time.LocalDateTime`	`parseLocalDateTime16(char[] str, int off)` yyyy-MM-ddTHH:mm yyyy-MM-dd HH:mm yyyyMMddTHHmmssZ yyyy-MM-ddTH:m:s yyyy-MM-dd H:m:s
`static java.time.LocalDateTime`	`parseLocalDateTime17(byte[] str, int off)` yyyy-MM-ddTHH:mmZ yyyy-MM-dd HH:mmZ yyyy-M-dTHH:mm:ss yyyy-M-d HH:mm:ss
`static java.time.LocalDateTime`	`parseLocalDateTime17(char[] str, int off)` yyyy-MM-ddTHH:mmZ yyyy-MM-dd HH:mmZ yyyy-M-dTHH:mm:ss yyyy-M-d HH:mm:ss
`static java.time.LocalDateTime`	`parseLocalDateTime18(byte[] str, int off)` yyyy-M-ddTHH:mm:ss yyyy-M-dd HH:mm:ss yyyy-MM-dTHH:mm:ss yyyy-MM-d HH:mm:ss yyyy-MM-ddTH:mm:ss yyyy-MM-dd H:mm:ss yyyy-MM-ddTHH:m:ss yyyy-MM-dd HH:m:ss yyyy-MM-ddTHH:mm:s yyyy-MM-dd HH:mm:s
`static java.time.LocalDateTime`	`parseLocalDateTime18(char[] str, int off)` yyyy-M-ddTHH:mm:ss yyyy-M-dd HH:mm:ss yyyy-MM-dTHH:mm:ss yyyy-MM-d HH:mm:ss yyyy-MM-ddTH:mm:ss yyyy-MM-dd H:mm:ss yyyy-MM-ddTHH:m:ss yyyy-MM-dd HH:m:ss yyyy-MM-ddTHH:mm:s yyyy-MM-dd HH:mm:s
`static java.time.LocalDateTime`	`parseLocalDateTime19(byte[] str, int off)` yyyy-MM-ddTHH:mm:ss yyyy-MM-dd HH:mm:ss yyyy/MM/ddTHH:mm:ss yyyy/MM/dd HH:mm:ss
`static java.time.LocalDateTime`	`parseLocalDateTime19(char[] str, int off)` yyyy-MM-ddTHH:mm:ss yyyy-MM-dd HH:mm:ss yyyy/MM/ddTHH:mm:ss yyyy/MM/dd HH:mm:ss
`static java.time.LocalDateTime`	`parseLocalDateTime19(java.lang.String str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime20(byte[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime20(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime26(byte[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime26(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime27(byte[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime27(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime28(byte[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime28(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime29(byte[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTime29(char[] str, int off)`
`static java.time.LocalDateTime`	`parseLocalDateTimeX(byte[] str, int offset, int len)`
`static java.time.LocalDateTime`	`parseLocalDateTimeX(char[] str, int offset, int len)`
`static java.time.LocalTime`	`parseLocalTime(char c0, char c1, char c2, char c3, char c4, char c5, char c6, char c7)`
`static java.time.LocalTime`	`parseLocalTime10(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime10(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime11(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime11(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime12(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime12(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime15(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime15(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime18(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime18(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime5(byte[] str, int off)` Parses a byte array to a LocalTime object with 5-character format (HH:mm).
`static java.time.LocalTime`	`parseLocalTime5(char[] str, int off)` Parses a character array to a LocalTime object with 5-character format (HH:mm).
`static java.time.LocalTime`	`parseLocalTime6(byte[] str, int off)` Parses a byte array to a LocalTime object with 6-character format (HHmmss).
`static java.time.LocalTime`	`parseLocalTime6(char[] str, int off)` Parses a character array to a LocalTime object with 6-character format (HHmmss).
`static java.time.LocalTime`	`parseLocalTime7(byte[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime7(char[] str, int off)`
`static java.time.LocalTime`	`parseLocalTime8(byte[] bytes, int off)`
`static java.time.LocalTime`	`parseLocalTime8(char[] bytes, int off)`
`static long`	`parseMillis(byte[] bytes, int off, int len)`
`static long`	`parseMillis(byte[] bytes, int off, int len, java.nio.charset.Charset charset)`
`static long`	`parseMillis(byte[] chars, int off, int len, java.nio.charset.Charset charset, java.time.ZoneId zoneId)`
`static long`	`parseMillis(char[] bytes, int off, int len)`
`static long`	`parseMillis(char[] chars, int off, int len, java.time.ZoneId zoneId)`
`static long`	`parseMillis(java.lang.String str)` Parses a date string to milliseconds since epoch using default parsing rules.
`static long`	`parseMillis(java.lang.String str, java.time.ZoneId zoneId)` Parses a date string to milliseconds since epoch using default parsing rules.
`(package private) static long`	`parseMillis10(java.lang.String str, java.time.ZoneId zoneId, DateUtils.DateTimeFormatPattern pattern)`
`static long`	`parseMillis19(byte[] bytes, int off, java.time.ZoneId zoneId)`
`static long`	`parseMillis19(char[] bytes, int off, java.time.ZoneId zoneId)`
`static long`	`parseMillis19(java.lang.String str, java.time.ZoneId zoneId)`
`(package private) static long`	`parseMillis19(java.lang.String str, java.time.ZoneId zoneId, DateUtils.DateTimeFormatPattern pattern)`
`static long`	`parseMillisYMDHMS19(java.lang.String str, java.time.ZoneId zoneId)`
`static java.time.ZonedDateTime`	`parseZonedDateTime(byte[] str, int off, int len)`
`static java.time.ZonedDateTime`	`parseZonedDateTime(byte[] str, int off, int len, java.time.ZoneId defaultZoneId)`
`static java.time.ZonedDateTime`	`parseZonedDateTime(char[] str, int off, int len)` Parses a character array to a ZonedDateTime object using default parsing rules with specified offset and length.
`static java.time.ZonedDateTime`	`parseZonedDateTime(char[] str, int off, int len, java.time.ZoneId defaultZoneId)`
`static java.time.ZonedDateTime`	`parseZonedDateTime(java.lang.String str)`
`static java.time.ZonedDateTime`	`parseZonedDateTime(java.lang.String str, java.time.ZoneId defaultZoneId)`
`(package private) static java.time.ZonedDateTime`	`parseZonedDateTime16(byte[] str, int off, java.time.ZoneId defaultZonedId)` ISO Date with offset, example '2011-12-03+01:00'
`(package private) static java.time.ZonedDateTime`	`parseZonedDateTime16(char[] str, int off, java.time.ZoneId defaultZonedId)` ISO Date with offset, example '2011-12-03+01:00'
`(package private) static java.time.ZonedDateTime`	`parseZonedDateTimeCookie(java.lang.String str)`
`static int`	`readNanos(byte[] bytes, int len, int offset)`
`static int`	`readNanos(char[] chars, int len, int offset)`
`static java.lang.String`	`toString(java.util.Date date)`
`static java.lang.String`	`toString(long timeMillis, boolean timeZone, java.time.ZoneId zoneId)`
`static long`	`utcSeconds(int year, int month, int dom, int hour, int minute, int second)`
`static int`	`yy(byte[] bytes, int off)`
`static java.time.ZoneOffset`	`zoneOffset(byte[] bytes, int start, int len)`
`static java.time.ZoneOffset`	`zoneOffset(char[] bytes, int start, int len)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_ZONE_ID

public static final java.time.ZoneId DEFAULT_ZONE_ID

SHANGHAI_ZONE_ID_NAME

public static final java.lang.String SHANGHAI_ZONE_ID_NAME

See Also:: Constant Field Values

SHANGHAI_ZONE_ID

public static final java.time.ZoneId SHANGHAI_ZONE_ID

SHANGHAI_ZONE_RULES

public static final java.time.zone.ZoneRules SHANGHAI_ZONE_RULES

OFFSET_8_ZONE_ID_NAME

public static final java.lang.String OFFSET_8_ZONE_ID_NAME

See Also:: Constant Field Values

OFFSET_8_ZONE_ID

public static final java.time.ZoneId OFFSET_8_ZONE_ID

LOCAL_DATE_19700101

public static final java.time.LocalDate LOCAL_DATE_19700101

DATE_TIME_FORMATTER_34

static java.time.format.DateTimeFormatter DATE_TIME_FORMATTER_34

DATE_TIME_FORMATTER_COOKIE

static java.time.format.DateTimeFormatter DATE_TIME_FORMATTER_COOKIE

DATE_TIME_FORMATTER_COOKIE_LOCAL

static java.time.format.DateTimeFormatter DATE_TIME_FORMATTER_COOKIE_LOCAL

DATE_TIME_FORMATTER_RFC_2822

static java.time.format.DateTimeFormatter DATE_TIME_FORMATTER_RFC_2822

LOCAL_EPOCH_DAY
```
static final int LOCAL_EPOCH_DAY
```

POWERS
```
private static final int[] POWERS
```

Constructor Detail
- DateUtils
```
public DateUtils()
```

Method Detail

parseDateYMDHMS19
```
public static java.util.Date parseDateYMDHMS19(java.lang.String str)
```
Parses a date string in the format "yyyy-MM-dd HH:mm:ss" to a Date object. Uses the default time zone for parsing.

Parameters:

str - the date string to parse, e.g., "2023-12-25 10:30:45"

Returns:

the parsed Date object, or null if the input string is null or empty

parseDate
```
public static java.util.Date parseDate(java.lang.String str,
                                       java.lang.String format)
```
Parses a date string with the specified format to a Date object. Uses the default time zone for parsing.

Parameters:

str - the date string to parse

format - the format pattern to use for parsing

Returns:

the parsed Date object, or null if the input string is null, empty, or "null"

parseDate
```
public static java.util.Date parseDate(java.lang.String str,
                                       java.lang.String format,
                                       java.time.ZoneId zoneId)
```
Parses a date string with the specified format and time zone to a Date object.

Parameters:

str - the date string to parse

format - the format pattern to use for parsing

zoneId - the time zone to use for parsing

Returns:

the parsed Date object, or null if the input string is null, empty, or "null"

parseDate
```
public static java.util.Date parseDate(java.lang.String str)
```
Parses a date string to a Date object using default parsing rules. Uses the default time zone for parsing.

Parameters:

str - the date string to parse

Returns:

the parsed Date object, or null if the input string is null, empty, or "null"

parseDate
```
public static java.util.Date parseDate(java.lang.String str,
                                       java.time.ZoneId zoneId)
```
Parses a date string to a Date object using default parsing rules. Uses the specified time zone for parsing.

Parameters:

str - the date string to parse

zoneId - the time zone to use for parsing

Returns:

the parsed Date object, or null if the input string is null, empty, or "null"

parseMillis
```
public static long parseMillis(java.lang.String str)
```
Parses a date string to milliseconds since epoch using default parsing rules. Uses the default time zone for parsing.

Parameters:

str - the date string to parse

Returns:

the parsed milliseconds since epoch, or 0 if the input string is null

parseMillis
```
public static long parseMillis(java.lang.String str,
                               java.time.ZoneId zoneId)
```
Parses a date string to milliseconds since epoch using default parsing rules. Uses the specified time zone for parsing.

Parameters:

str - the date string to parse

zoneId - the time zone to use for parsing

Returns:

the parsed milliseconds since epoch, or 0 if the input string is null

parseLocalDateTime
```
public static java.time.LocalDateTime parseLocalDateTime(java.lang.String str)
```
Parses a date string to a LocalDateTime object using default parsing rules.

Parameters:

str - the date string to parse

Returns:

the parsed LocalDateTime object, or null if the input string is null or empty

parseLocalDateTime
```
public static java.time.LocalDateTime parseLocalDateTime(java.lang.String str,
                                                         int off,
                                                         int len)
```
Parses a date string to a LocalDateTime object using default parsing rules with specified offset and length.

Parameters:

str - the date string to parse

off - the offset in the string to start parsing from

len - the length of the substring to parse

Returns:

the parsed LocalDateTime object, or null if the input string is null or empty

parseLocalDateTime
```
public static java.time.LocalDateTime parseLocalDateTime(char[] str,
                                                         int off,
                                                         int len)
```
Parses a character array to a LocalDateTime object using default parsing rules with specified offset and length.

Parameters:

str - the character array to parse

off - the offset in the array to start parsing from

len - the length of the subarray to parse

Returns:

the parsed LocalDateTime object, or null if the input array is null or empty

parseLocalTime5
```
public static java.time.LocalTime parseLocalTime5(byte[] str,
                                                  int off)
```
Parses a byte array to a LocalTime object with 5-character format (HH:mm). Supports formats like "10:30".

Parameters:

str - the byte array to parse

off - the offset in the array to start parsing from

Returns:

the parsed LocalTime object, or null if the input array is null or too short

parseLocalTime5
```
public static java.time.LocalTime parseLocalTime5(char[] str,
                                                  int off)
```
Parses a character array to a LocalTime object with 5-character format (HH:mm). Supports formats like "10:30".

Parameters:

str - the character array to parse

off - the offset in the array to start parsing from

Returns:

the parsed LocalTime object, or null if the input array is null or too short

parseLocalTime6
```
public static java.time.LocalTime parseLocalTime6(byte[] str,
                                                  int off)
```
Parses a byte array to a LocalTime object with 6-character format (HHmmss). Supports formats like "103045".

Parameters:

str - the byte array to parse

off - the offset in the array to start parsing from

Returns:

the parsed LocalTime object, or null if the input array is null or too short

parseLocalTime6
```
public static java.time.LocalTime parseLocalTime6(char[] str,
                                                  int off)
```
Parses a character array to a LocalTime object with 6-character format (HHmmss). Supports formats like "103045".

Parameters:

str - the character array to parse

off - the offset in the array to start parsing from

Returns:

the parsed LocalTime object, or null if the input array is null or too short

parseLocalTime7

public static java.time.LocalTime parseLocalTime7(byte[] str,
                                                  int off)

parseLocalTime7

public static java.time.LocalTime parseLocalTime7(char[] str,
                                                  int off)

parseLocalTime8

public static java.time.LocalTime parseLocalTime8(byte[] bytes,
                                                  int off)

parseLocalTime8

public static java.time.LocalTime parseLocalTime8(char[] bytes,
                                                  int off)

parseLocalTime

public static java.time.LocalTime parseLocalTime(char c0,
                                                 char c1,
                                                 char c2,
                                                 char c3,
                                                 char c4,
                                                 char c5,
                                                 char c6,
                                                 char c7)

parseLocalTime10

public static java.time.LocalTime parseLocalTime10(byte[] str,
                                                   int off)

parseLocalTime10

public static java.time.LocalTime parseLocalTime10(char[] str,
                                                   int off)

parseLocalTime11

public static java.time.LocalTime parseLocalTime11(byte[] str,
                                                   int off)

parseLocalTime11

public static java.time.LocalTime parseLocalTime11(char[] str,
                                                   int off)

parseLocalTime12

public static java.time.LocalTime parseLocalTime12(byte[] str,
                                                   int off)

parseLocalTime12

public static java.time.LocalTime parseLocalTime12(char[] str,
                                                   int off)

parseLocalTime15

public static java.time.LocalTime parseLocalTime15(byte[] str,
                                                   int off)

parseLocalTime15

public static java.time.LocalTime parseLocalTime15(char[] str,
                                                   int off)

parseLocalTime18

public static java.time.LocalTime parseLocalTime18(byte[] str,
                                                   int off)

parseLocalTime18

public static java.time.LocalTime parseLocalTime18(char[] str,
                                                   int off)

localTime

private static java.time.LocalTime localTime(int hour,
                                             int minute,
                                             int second)

parseLocalDateTime

public static java.time.LocalDateTime parseLocalDateTime(byte[] str,
                                                         int off,
                                                         int len)

parseLocalDate

public static java.time.LocalDate parseLocalDate(java.lang.String str)

parseLocalDate

public static java.time.LocalDate parseLocalDate(byte[] str,
                                                 int off,
                                                 int len)

parseLocalDate
```
public static java.time.LocalDate parseLocalDate(char[] str,
                                                 int off,
                                                 int len)
```
Parses a character array to a LocalDate object using default parsing rules with specified offset and length.

Parameters:

str - the character array to parse

off - the offset in the array to start parsing from

len - the length of the subarray to parse

Returns:

the parsed LocalDate object, or null if the input array is null or empty

parseMillis

public static long parseMillis(byte[] bytes,
                               int off,
                               int len)

parseMillis

public static long parseMillis(byte[] bytes,
                               int off,
                               int len,
                               java.nio.charset.Charset charset)

parseMillis

public static long parseMillis(byte[] chars,
                               int off,
                               int len,
                               java.nio.charset.Charset charset,
                               java.time.ZoneId zoneId)

parseMillis

public static long parseMillis(char[] bytes,
                               int off,
                               int len)

parseMillis

public static long parseMillis(char[] chars,
                               int off,
                               int len,
                               java.time.ZoneId zoneId)

parseLocalDate8

public static java.time.LocalDate parseLocalDate8(byte[] str,
                                                  int off)

yyyy-m-d yyyyMMdd d-MMM-yy

parseLocalDate8

public static java.time.LocalDate parseLocalDate8(char[] str,
                                                  int off)

yyyy-m-d yyyyMMdd d-MMM-yy

parseLocalDate9

public static java.time.LocalDate parseLocalDate9(byte[] str,
                                                  int off)

yyyy-MM-d yyyy-M-dd dd-MMM-yy

parseLocalDate9

public static java.time.LocalDate parseLocalDate9(char[] str,
                                                  int off)

yyyy-MM-d yyyy-M-dd dd-MMM-yy

parseLocalDate10

public static java.time.LocalDate parseLocalDate10(byte[] str,
                                                   int off)

yyyy-MM-dd yyyy/MM/dd MM/dd/yyyy dd.MM.yyyy yyyy年M月dd日 yyyy年MM月d日 yyyy MMM d

parseLocalDate10

public static java.time.LocalDate parseLocalDate10(char[] str,
                                                   int off)

yyyy-MM-dd yyyy/MM/dd MM/dd/yyyy dd.MM.yyyy yyyy年M月dd日 yyyy年MM月d日 yyyy MMM d

parseLocalDate11

public static java.time.LocalDate parseLocalDate11(char[] str,
                                                   int off)

yyyy年MM月dd日 yyyy년MM월dd일

parseLocalDate11

public static java.time.LocalDate parseLocalDate11(byte[] str,
                                                   int off)

parseLocalDateTime12

public static java.time.LocalDateTime parseLocalDateTime12(char[] str,
                                                           int off)

parseLocalDateTime12

public static java.time.LocalDateTime parseLocalDateTime12(byte[] str,
                                                           int off)

parseLocalDateTime use format 'yyyyMMddHHmm'

parseLocalDateTime14

public static java.time.LocalDateTime parseLocalDateTime14(char[] str,
                                                           int off)

yyyyMMddHHmmss

parseLocalDateTime14

public static java.time.LocalDateTime parseLocalDateTime14(byte[] str,
                                                           int off)

yyyyMMddHHmmss

parseLocalDateTime16

public static java.time.LocalDateTime parseLocalDateTime16(char[] str,
                                                           int off)

yyyy-MM-ddTHH:mm yyyy-MM-dd HH:mm yyyyMMddTHHmmssZ yyyy-MM-ddTH:m:s yyyy-MM-dd H:m:s

parseLocalDateTime16

public static java.time.LocalDateTime parseLocalDateTime16(byte[] str,
                                                           int off)

yyyy-MM-ddTHH:mm yyyy-MM-dd HH:mm yyyyMMddTHHmmssZ yyyy-MM-ddTH:m:s yyyy-MM-dd H:m:s

parseLocalDateTime17

public static java.time.LocalDateTime parseLocalDateTime17(char[] str,
                                                           int off)

yyyy-MM-ddTHH:mmZ yyyy-MM-dd HH:mmZ yyyy-M-dTHH:mm:ss yyyy-M-d HH:mm:ss

parseLocalDateTime17

public static java.time.LocalDateTime parseLocalDateTime17(byte[] str,
                                                           int off)

yyyy-MM-ddTHH:mmZ yyyy-MM-dd HH:mmZ yyyy-M-dTHH:mm:ss yyyy-M-d HH:mm:ss

parseLocalDateTime18
```
public static java.time.LocalDateTime parseLocalDateTime18(char[] str,
                                                           int off)
```
yyyy-M-ddTHH:mm:ss yyyy-M-dd HH:mm:ss yyyy-MM-dTHH:mm:ss yyyy-MM-d HH:mm:ss yyyy-MM-ddTH:mm:ss yyyy-MM-dd H:mm:ss yyyy-MM-ddTHH:m:ss yyyy-MM-dd HH:m:ss yyyy-MM-ddTHH:mm:s yyyy-MM-dd HH:mm:s

parseLocalDateTime18
```
public static java.time.LocalDateTime parseLocalDateTime18(byte[] str,
                                                           int off)
```
yyyy-M-ddTHH:mm:ss yyyy-M-dd HH:mm:ss yyyy-MM-dTHH:mm:ss yyyy-MM-d HH:mm:ss yyyy-MM-ddTH:mm:ss yyyy-MM-dd H:mm:ss yyyy-MM-ddTHH:m:ss yyyy-MM-dd HH:m:ss yyyy-MM-ddTHH:mm:s yyyy-MM-dd HH:mm:s

parseLocalDateTime19

public static java.time.LocalDateTime parseLocalDateTime19(char[] str,
                                                           int off)

yyyy-MM-ddTHH:mm:ss yyyy-MM-dd HH:mm:ss yyyy/MM/ddTHH:mm:ss yyyy/MM/dd HH:mm:ss

parseLocalDateTime19

public static java.time.LocalDateTime parseLocalDateTime19(java.lang.String str,
                                                           int off)

parseLocalDateTime19

public static java.time.LocalDateTime parseLocalDateTime19(byte[] str,
                                                           int off)

yyyy-MM-ddTHH:mm:ss yyyy-MM-dd HH:mm:ss yyyy/MM/ddTHH:mm:ss yyyy/MM/dd HH:mm:ss

parseLocalDateTime20

public static java.time.LocalDateTime parseLocalDateTime20(char[] str,
                                                           int off)

parseLocalDateTime20

public static java.time.LocalDateTime parseLocalDateTime20(byte[] str,
                                                           int off)

parseLocalDateTime26

public static java.time.LocalDateTime parseLocalDateTime26(byte[] str,
                                                           int off)

parseLocalDateTime26

public static java.time.LocalDateTime parseLocalDateTime26(char[] str,
                                                           int off)

parseLocalDateTime27

public static java.time.LocalDateTime parseLocalDateTime27(byte[] str,
                                                           int off)

parseLocalDateTime27

public static java.time.LocalDateTime parseLocalDateTime27(char[] str,
                                                           int off)

parseLocalDateTime28

public static java.time.LocalDateTime parseLocalDateTime28(char[] str,
                                                           int off)

parseLocalDateTime28

public static java.time.LocalDateTime parseLocalDateTime28(byte[] str,
                                                           int off)

parseLocalDateTime29

public static java.time.LocalDateTime parseLocalDateTime29(byte[] str,
                                                           int off)

parseLocalDateTime29

public static java.time.LocalDateTime parseLocalDateTime29(char[] str,
                                                           int off)

parseLocalDateTimeX

public static java.time.LocalDateTime parseLocalDateTimeX(char[] str,
                                                          int offset,
                                                          int len)

parseLocalDateTimeX

public static java.time.LocalDateTime parseLocalDateTimeX(byte[] str,
                                                          int offset,
                                                          int len)

parseZonedDateTime16

static java.time.ZonedDateTime parseZonedDateTime16(char[] str,
                                                    int off,
                                                    java.time.ZoneId defaultZonedId)

ISO Date with offset, example '2011-12-03+01:00'

parseZonedDateTime16

static java.time.ZonedDateTime parseZonedDateTime16(byte[] str,
                                                    int off,
                                                    java.time.ZoneId defaultZonedId)

ISO Date with offset, example '2011-12-03+01:00'

parseZonedDateTime

public static java.time.ZonedDateTime parseZonedDateTime(java.lang.String str)

parseZonedDateTime

public static java.time.ZonedDateTime parseZonedDateTime(java.lang.String str,
                                                         java.time.ZoneId defaultZoneId)

parseZonedDateTime

public static java.time.ZonedDateTime parseZonedDateTime(byte[] str,
                                                         int off,
                                                         int len)

parseZonedDateTime
```
public static java.time.ZonedDateTime parseZonedDateTime(char[] str,
                                                         int off,
                                                         int len)
```
Parses a character array to a ZonedDateTime object using default parsing rules with specified offset and length.

Parameters:

str - the character array to parse

off - the offset in the array to start parsing from

len - the length of the subarray to parse

Returns:

the parsed ZonedDateTime object, or null if the input array is null or empty

parseZonedDateTime

public static java.time.ZonedDateTime parseZonedDateTime(byte[] str,
                                                         int off,
                                                         int len,
                                                         java.time.ZoneId defaultZoneId)

parseZonedDateTime

public static java.time.ZonedDateTime parseZonedDateTime(char[] str,
                                                         int off,
                                                         int len,
                                                         java.time.ZoneId defaultZoneId)

parseZonedDateTimeCookie

static java.time.ZonedDateTime parseZonedDateTimeCookie(java.lang.String str)

getZoneId

public static java.time.ZoneId getZoneId(java.lang.String zoneIdStr,
                                         java.time.ZoneId defaultZoneId)

parseMillisYMDHMS19

public static long parseMillisYMDHMS19(java.lang.String str,
                                       java.time.ZoneId zoneId)

calcEpochDay

private static long calcEpochDay(int year,
                                 int month,
                                 int dom)

parseMillis19

static long parseMillis19(java.lang.String str,
                          java.time.ZoneId zoneId,
                          DateUtils.DateTimeFormatPattern pattern)

parseMillis10

static long parseMillis10(java.lang.String str,
                          java.time.ZoneId zoneId,
                          DateUtils.DateTimeFormatPattern pattern)

parseMillis19

public static long parseMillis19(java.lang.String str,
                                 java.time.ZoneId zoneId)

parseMillis19

public static long parseMillis19(byte[] bytes,
                                 int off,
                                 java.time.ZoneId zoneId)

parseMillis19

public static long parseMillis19(char[] bytes,
                                 int off,
                                 java.time.ZoneId zoneId)

localDateTime

public static java.time.LocalDateTime localDateTime(char y0,
                                                    char y1,
                                                    char y2,
                                                    char y3,
                                                    char m0,
                                                    char m1,
                                                    char d0,
                                                    char d1,
                                                    char h0,
                                                    char h1,
                                                    char i0,
                                                    char i1,
                                                    char s0,
                                                    char s1)

localDateTime

public static java.time.LocalDateTime localDateTime(char y0,
                                                    char y1,
                                                    char y2,
                                                    char y3,
                                                    char m0,
                                                    char m1,
                                                    char d0,
                                                    char d1,
                                                    char h0,
                                                    char h1,
                                                    char i0,
                                                    char i1,
                                                    char s0,
                                                    char s1,
                                                    char S0,
                                                    char S1,
                                                    char S2,
                                                    char S3,
                                                    char S4,
                                                    char S5,
                                                    char S6,
                                                    char S7,
                                                    char S8)

millis

public static long millis(java.time.LocalDateTime ldt)

millis

public static long millis(java.time.LocalDateTime ldt,
                          java.time.ZoneId zoneId)

millis

public static long millis(java.time.ZoneId zoneId,
                          int year,
                          int month,
                          int dom,
                          int hour,
                          int minute,
                          int second,
                          int nanoOfSecond)

utcSeconds

public static long utcSeconds(int year,
                              int month,
                              int dom,
                              int hour,
                              int minute,
                              int second)

formatYMDHMS19
```
public static java.lang.String formatYMDHMS19(java.util.Date date)
```
Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss". Uses the system default time zone for formatting.

Parameters:

date - the Date object to format

Returns:

the formatted date string, e.g., "2023-12-25 10:30:45"

formatYMDHMS19
```
public static java.lang.String formatYMDHMS19(java.util.Date date,
                                              java.time.ZoneId zoneId)
```
Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss". Uses the specified time zone for formatting.

Parameters:

date - the Date object to format

zoneId - the time zone to use for formatting

Returns:

the formatted date string, e.g., "2023-12-25 10:30:45"

formatYMD8
```
public static java.lang.String formatYMD8(java.util.Date date)
```
Formats a Date object to a string in the format "yyyyMMdd". Uses the system default time zone for formatting.

Parameters:

date - the Date object to format

Returns:

the formatted date string, e.g., "20231225"

formatYMD8
```
public static java.lang.String formatYMD8(long timeMillis,
                                          java.time.ZoneId zoneId)
```
Formats a timestamp in milliseconds to a string in the format "yyyyMMdd". Uses the specified time zone for formatting.

Parameters:

timeMillis - the timestamp in milliseconds to format

zoneId - the time zone to use for formatting

Returns:

the formatted date string, e.g., "20231225"

formatYMD10

public static java.lang.String formatYMD10(int year,
                                           int month,
                                           int dayOfMonth)

formatYMD10

public static java.lang.String formatYMD10(java.time.LocalDate date)

formatYMD10

public static java.lang.String formatYMD10(java.util.Date date)

formatYMD8

public static java.lang.String formatYMD8(java.time.LocalDate date)

formatYMD10

public static java.lang.String formatYMD10(long timeMillis,
                                           java.time.ZoneId zoneId)

format

public static java.lang.String format(java.util.Date date,
                                      java.lang.String format)

formatYMDHMS19

public static java.lang.String formatYMDHMS19(java.time.ZonedDateTime zdt)

format

public static java.lang.String format(java.time.ZonedDateTime zdt,
                                      java.lang.String format)

formatYMDHMS19

public static java.lang.String formatYMDHMS19(java.time.LocalDateTime ldt)

format

public static java.lang.String format(java.time.LocalDateTime ldt,
                                      java.lang.String format)

formatYMDHMS19

public static java.lang.String formatYMDHMS19(java.time.LocalDate localDate)

format

public static java.lang.String format(java.time.LocalDate localDate,
                                      java.lang.String format)

format

public static java.lang.String format(int year,
                                      int month,
                                      int dayOfMonth)

format

public static java.lang.String format(int year,
                                      int month,
                                      int dayOfMonth,
                                      DateUtils.DateTimeFormatPattern pattern)

format

public static java.lang.String format(long timeMillis)

format

public static java.lang.String format(java.util.Date date)

format

public static java.lang.String format(long timeMillis,
                                      DateUtils.DateTimeFormatPattern pattern)

format

public static java.lang.String format(int year,
                                      int month,
                                      int dayOfMonth,
                                      int hour,
                                      int minute,
                                      int second)

format

static java.lang.String format(int year,
                               int month,
                               int dayOfMonth,
                               int hour,
                               int minute,
                               int second,
                               DateUtils.DateTimeFormatPattern pattern)

toString

public static java.lang.String toString(java.util.Date date)

toString

public static java.lang.String toString(long timeMillis,
                                        boolean timeZone,
                                        java.time.ZoneId zoneId)

month

private static int month(byte c0,
                         byte c1,
                         byte c2)

month

public static int month(char c0,
                        char c1,
                        char c2)

hourAfterNoon

public static int hourAfterNoon(char h0,
                                char h1)

getShanghaiZoneOffsetTotalSeconds

public static int getShanghaiZoneOffsetTotalSeconds(long seconds)

isLocalDate

public static boolean isLocalDate(java.lang.String str)

isDate

public static boolean isDate(java.lang.String str)

isLocalTime

public static boolean isLocalTime(java.lang.String str)

readNanos

public static int readNanos(char[] chars,
                            int len,
                            int offset)

readNanos

public static int readNanos(byte[] bytes,
                            int len,
                            int offset)

zoneOffset

public static java.time.ZoneOffset zoneOffset(byte[] bytes,
                                              int start,
                                              int len)

zoneOffset

public static java.time.ZoneOffset zoneOffset(char[] bytes,
                                              int start,
                                              int len)

nanos

public static int nanos(int value,
                        int nanoSize)

hms

public static long hms(byte[] bytes,
                       int off)

yy

public static int yy(byte[] bytes,
                     int off)

localDateYMD

public static java.time.LocalDate localDateYMD(byte[] bytes,
                                               int off)

Class DateUtils

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_ZONE_ID

SHANGHAI_ZONE_ID_NAME

SHANGHAI_ZONE_ID

SHANGHAI_ZONE_RULES

OFFSET_8_ZONE_ID_NAME

OFFSET_8_ZONE_ID

LOCAL_DATE_19700101

DATE_TIME_FORMATTER_34

DATE_TIME_FORMATTER_COOKIE

DATE_TIME_FORMATTER_COOKIE_LOCAL

DATE_TIME_FORMATTER_RFC_2822

LOCAL_EPOCH_DAY

POWERS

Constructor Detail

DateUtils

Method Detail

parseDateYMDHMS19

parseDate

parseDate

parseDate

parseDate

parseMillis

parseMillis

parseLocalDateTime

parseLocalDateTime

parseLocalDateTime

parseLocalTime5

parseLocalTime5

parseLocalTime6

parseLocalTime6

parseLocalTime7

parseLocalTime7

parseLocalTime8

parseLocalTime8

parseLocalTime

parseLocalTime10

parseLocalTime10

parseLocalTime11

parseLocalTime11

parseLocalTime12

parseLocalTime12

parseLocalTime15

parseLocalTime15

parseLocalTime18

parseLocalTime18

localTime

parseLocalDateTime

parseLocalDate

parseLocalDate

parseLocalDate

parseMillis

parseMillis

parseMillis

parseMillis

parseMillis

parseLocalDate8

parseLocalDate8

parseLocalDate9

parseLocalDate9

parseLocalDate10

parseLocalDate10

parseLocalDate11

parseLocalDate11

parseLocalDateTime12

parseLocalDateTime12

parseLocalDateTime14

parseLocalDateTime14

parseLocalDateTime16

parseLocalDateTime16

parseLocalDateTime17

parseLocalDateTime17

parseLocalDateTime18

parseLocalDateTime18