Package com.alibaba.fastjson2.util

Class DateUtils

java.lang.Object

com.alibaba.fastjson2.util.DateUtils

public class DateUtils
extends 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	Description
static enum	DateUtils.DateTimeFormatPattern

Field Summary

Fields

Modifier and Type	Field	Description
static final ZoneId	DEFAULT_ZONE_ID
static final LocalDate	LOCAL_DATE_19700101
static final ZoneId	OFFSET_8_ZONE_ID
static final String	OFFSET_8_ZONE_ID_NAME
static final ZoneId	SHANGHAI_ZONE_ID
static final String	SHANGHAI_ZONE_ID_NAME
static final ZoneRules	SHANGHAI_ZONE_RULES

Constructor Summary

Constructors

Constructor	Description
DateUtils()

Method Summary

Modifier and Type	Method	Description
static String	format(int year, int month, int dayOfMonth)
static String	format(int year, int month, int dayOfMonth, int hour, int minute, int second)
static String	format(int year, int month, int dayOfMonth, DateUtils.DateTimeFormatPattern pattern)
static String	format(long timeMillis)
static String	format(long timeMillis, DateUtils.DateTimeFormatPattern pattern)
static String	format(LocalDate localDate, String format)
static String	format(LocalDateTime ldt, String format)
static String	format(ZonedDateTime zdt, String format)
static String	format(Date date)
static String	format(Date date, String format)
static String	formatYMD10(int year, int month, int dayOfMonth)
static String	formatYMD10(long timeMillis, ZoneId zoneId)
static String	formatYMD10(LocalDate date)
static String	formatYMD10(Date date)
static String	formatYMD8(long timeMillis, ZoneId zoneId)	Formats a timestamp in milliseconds to a string in the format "yyyyMMdd".
static String	formatYMD8(LocalDate date)
static String	formatYMD8(Date date)	Formats a Date object to a string in the format "yyyyMMdd".
static String	formatYMDHMS19(LocalDate localDate)
static String	formatYMDHMS19(LocalDateTime ldt)
static String	formatYMDHMS19(ZonedDateTime zdt)
static String	formatYMDHMS19(Date date)	Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss".
static String	formatYMDHMS19(Date date, ZoneId zoneId)	Formats a Date object to a string in the format "yyyy-MM-dd HH:mm:ss".
static int	getShanghaiZoneOffsetTotalSeconds(long seconds)
static ZoneId	getZoneId(String zoneIdStr, ZoneId defaultZoneId)
static long	hms(byte[] bytes, int off)
static int	hourAfterNoon(char h0, char h1)
static boolean	isDate(String str)
static boolean	isLocalDate(String str)
static boolean	isLocalTime(String str)
static 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 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 long	millis(LocalDateTime ldt)
static long	millis(LocalDateTime ldt, ZoneId zoneId)
static long	millis(ZoneId zoneId, int year, int month, int dom, int hour, int minute, int second, int nanoOfSecond)
static int	month(char c0, char c1, char c2)
static int	nanos(int value, int nanoSize)
static Date	parseDate(String str)	Parses a date string to a Date object using default parsing rules.
static Date	parseDate(String str, String format)	Parses a date string with the specified format to a Date object.
static Date	parseDate(String str, String format, ZoneId zoneId)	Parses a date string with the specified format and time zone to a Date object.
static Date	parseDate(String str, ZoneId zoneId)	Parses a date string to a Date object using default parsing rules.
static Date	parseDateYMDHMS19(String str)	Parses a date string in the format "yyyy-MM-dd HH:mm:ss" to a Date object.
static LocalDate	parseLocalDate(byte[] str, int off, int len)
static 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 LocalDate	parseLocalDate(String str)
static 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 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 LocalDate	parseLocalDate11(byte[] str, int off)
static LocalDate	parseLocalDate11(char[] str, int off)	yyyy年MM月dd日 yyyy년MM월dd일
static LocalDate	parseLocalDate8(byte[] str, int off)	yyyy-m-d yyyyMMdd d-MMM-yy
static LocalDate	parseLocalDate8(char[] str, int off)	yyyy-m-d yyyyMMdd d-MMM-yy
static LocalDate	parseLocalDate9(byte[] str, int off)	yyyy-MM-d yyyy-M-dd dd-MMM-yy
static LocalDate	parseLocalDate9(char[] str, int off)	yyyy-MM-d yyyy-M-dd dd-MMM-yy
static LocalDateTime	parseLocalDateTime(byte[] str, int off, int len)
static 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 LocalDateTime	parseLocalDateTime(String str)	Parses a date string to a LocalDateTime object using default parsing rules.
static LocalDateTime	parseLocalDateTime(String str, int off, int len)	Parses a date string to a LocalDateTime object using default parsing rules with specified offset and length.
static LocalDateTime	parseLocalDateTime12(byte[] str, int off)	parseLocalDateTime use format 'yyyyMMddHHmm'
static LocalDateTime	parseLocalDateTime12(char[] str, int off)
static LocalDateTime	parseLocalDateTime14(byte[] str, int off)	yyyyMMddHHmmss
static LocalDateTime	parseLocalDateTime14(char[] str, int off)	yyyyMMddHHmmss
static 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 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 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 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 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 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 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 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 LocalDateTime	parseLocalDateTime19(String str, int off)
static LocalDateTime	parseLocalDateTime20(byte[] str, int off)
static LocalDateTime	parseLocalDateTime20(char[] str, int off)
static LocalDateTime	parseLocalDateTime26(byte[] str, int off)
static LocalDateTime	parseLocalDateTime26(char[] str, int off)
static LocalDateTime	parseLocalDateTime27(byte[] str, int off)
static LocalDateTime	parseLocalDateTime27(char[] str, int off)
static LocalDateTime	parseLocalDateTime28(byte[] str, int off)
static LocalDateTime	parseLocalDateTime28(char[] str, int off)
static LocalDateTime	parseLocalDateTime29(byte[] str, int off)
static LocalDateTime	parseLocalDateTime29(char[] str, int off)
static LocalDateTime	parseLocalDateTimeX(byte[] str, int offset, int len)
static LocalDateTime	parseLocalDateTimeX(char[] str, int offset, int len)
static LocalTime	parseLocalTime(char c0, char c1, char c2, char c3, char c4, char c5, char c6, char c7)
static LocalTime	parseLocalTime10(byte[] str, int off)
static LocalTime	parseLocalTime10(char[] str, int off)
static LocalTime	parseLocalTime11(byte[] str, int off)
static LocalTime	parseLocalTime11(char[] str, int off)
static LocalTime	parseLocalTime12(byte[] str, int off)
static LocalTime	parseLocalTime12(char[] str, int off)
static LocalTime	parseLocalTime15(byte[] str, int off)
static LocalTime	parseLocalTime15(char[] str, int off)
static LocalTime	parseLocalTime18(byte[] str, int off)
static LocalTime	parseLocalTime18(char[] str, int off)
static LocalTime	parseLocalTime5(byte[] str, int off)	Parses a byte array to a LocalTime object with 5-character format (HH:mm).
static LocalTime	parseLocalTime5(char[] str, int off)	Parses a character array to a LocalTime object with 5-character format (HH:mm).
static LocalTime	parseLocalTime6(byte[] str, int off)	Parses a byte array to a LocalTime object with 6-character format (HHmmss).
static LocalTime	parseLocalTime6(char[] str, int off)	Parses a character array to a LocalTime object with 6-character format (HHmmss).
static LocalTime	parseLocalTime7(byte[] str, int off)
static LocalTime	parseLocalTime7(char[] str, int off)
static LocalTime	parseLocalTime8(byte[] bytes, int off)
static LocalTime	parseLocalTime8(char[] bytes, int off)
static long	parseMillis(byte[] bytes, int off, int len)
static long	parseMillis(byte[] bytes, int off, int len, Charset charset)
static long	parseMillis(byte[] chars, int off, int len, Charset charset, ZoneId zoneId)
static long	parseMillis(char[] bytes, int off, int len)
static long	parseMillis(char[] chars, int off, int len, ZoneId zoneId)
static long	parseMillis(String str)	Parses a date string to milliseconds since epoch using default parsing rules.
static long	parseMillis(String str, ZoneId zoneId)	Parses a date string to milliseconds since epoch using default parsing rules.
static long	parseMillis19(byte[] bytes, int off, ZoneId zoneId)
static long	parseMillis19(char[] bytes, int off, ZoneId zoneId)
static long	parseMillis19(String str, ZoneId zoneId)
static long	parseMillisYMDHMS19(String str, ZoneId zoneId)
static ZonedDateTime	parseZonedDateTime(byte[] str, int off, int len)
static ZonedDateTime	parseZonedDateTime(byte[] str, int off, int len, ZoneId defaultZoneId)
static 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 ZonedDateTime	parseZonedDateTime(char[] str, int off, int len, ZoneId defaultZoneId)
static ZonedDateTime	parseZonedDateTime(String str)
static ZonedDateTime	parseZonedDateTime(String str, ZoneId defaultZoneId)
static int	readNanos(byte[] bytes, int len, int offset)
static int	readNanos(char[] chars, int len, int offset)
static String	toString(long timeMillis, boolean timeZone, ZoneId zoneId)
static String	toString(Date date)
static long	utcSeconds(int year, int month, int dom, int hour, int minute, int second)
static long	ymd(byte[] bytes, int off)
static int	yy(byte[] bytes, int off)
static ZoneOffset	zoneOffset(byte[] bytes, int start, int len)
static 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 Details

DEFAULT_ZONE_ID

public static final ZoneId DEFAULT_ZONE_ID

SHANGHAI_ZONE_ID_NAME

public static final String SHANGHAI_ZONE_ID_NAME

See Also:

• Constant Field Values

SHANGHAI_ZONE_ID

public static final ZoneId SHANGHAI_ZONE_ID

SHANGHAI_ZONE_RULES

public static final ZoneRules SHANGHAI_ZONE_RULES

OFFSET_8_ZONE_ID_NAME

public static final String OFFSET_8_ZONE_ID_NAME

See Also:

• Constant Field Values

OFFSET_8_ZONE_ID

public static final ZoneId OFFSET_8_ZONE_ID

LOCAL_DATE_19700101

public static final LocalDate LOCAL_DATE_19700101

Constructor Details

DateUtils

public DateUtils()

Method Details

parseDateYMDHMS19

public static Date parseDateYMDHMS19(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 Date parseDate(String str,
 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 Date parseDate(String str,
 String format,
 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 Date parseDate(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 Date parseDate(String str,
 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(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(String str,
 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 LocalDateTime parseLocalDateTime(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 LocalDateTime parseLocalDateTime(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 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 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 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 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 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 LocalTime parseLocalTime7(byte[] str,
 int off)

parseLocalTime7

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

parseLocalTime8

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

parseLocalTime8

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

parseLocalTime

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

parseLocalTime10

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

parseLocalTime10

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

parseLocalTime11

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

parseLocalTime11

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

parseLocalTime12

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

parseLocalTime12

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

parseLocalTime15

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

parseLocalTime15

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

parseLocalTime18

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

parseLocalTime18

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

parseLocalDateTime

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

parseLocalDate

public static LocalDate parseLocalDate(String str)

parseLocalDate

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

parseLocalDate

public static 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,
 Charset charset)

parseMillis

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

parseMillis

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

parseMillis

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

parseLocalDate8

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

yyyy-m-d yyyyMMdd d-MMM-yy

parseLocalDate8

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

yyyy-m-d yyyyMMdd d-MMM-yy

parseLocalDate9

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

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

parseLocalDate9

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

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

parseLocalDate10

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

yyyy年MM月dd日 yyyy년MM월dd일

parseLocalDate11

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

parseLocalDateTime12

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

parseLocalDateTime12

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

parseLocalDateTime use format 'yyyyMMddHHmm'

parseLocalDateTime14

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

yyyyMMddHHmmss

parseLocalDateTime14

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

yyyyMMddHHmmss

parseLocalDateTime16

public static 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 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 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 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 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 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 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 LocalDateTime parseLocalDateTime19(String str,
 int off)

parseLocalDateTime19

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

parseLocalDateTime20

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

parseLocalDateTime26

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

parseLocalDateTime26

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

parseLocalDateTime27

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

parseLocalDateTime27

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

parseLocalDateTime28

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

parseLocalDateTime28

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

parseLocalDateTime29

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

parseLocalDateTime29

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

parseLocalDateTimeX

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

parseLocalDateTimeX

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

parseZonedDateTime

public static ZonedDateTime parseZonedDateTime(String str)

parseZonedDateTime

public static ZonedDateTime parseZonedDateTime(String str,
 ZoneId defaultZoneId)

parseZonedDateTime

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

parseZonedDateTime

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

parseZonedDateTime

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

getZoneId

public static ZoneId getZoneId(String zoneIdStr,
 ZoneId defaultZoneId)

parseMillisYMDHMS19

public static long parseMillisYMDHMS19(String str,
 ZoneId zoneId)

parseMillis19

public static long parseMillis19(String str,
 ZoneId zoneId)

parseMillis19

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

parseMillis19

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

localDateTime

public static 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 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(LocalDateTime ldt)

millis

public static long millis(LocalDateTime ldt,
 ZoneId zoneId)

millis

public static long millis(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 String formatYMDHMS19(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 String formatYMDHMS19(Date date,
 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 String formatYMD8(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 String formatYMD8(long timeMillis,
 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 String formatYMD10(int year,
 int month,
 int dayOfMonth)

formatYMD10

public static String formatYMD10(LocalDate date)

formatYMD10

public static String formatYMD10(Date date)

formatYMD8

public static String formatYMD8(LocalDate date)

formatYMD10

public static String formatYMD10(long timeMillis,
 ZoneId zoneId)

format

public static String format(Date date,
 String format)

formatYMDHMS19

public static String formatYMDHMS19(ZonedDateTime zdt)

format

public static String format(ZonedDateTime zdt,
 String format)

formatYMDHMS19

public static String formatYMDHMS19(LocalDateTime ldt)

format

public static String format(LocalDateTime ldt,
 String format)

formatYMDHMS19

public static String formatYMDHMS19(LocalDate localDate)

format

public static String format(LocalDate localDate,
 String format)

format

public static String format(int year,
 int month,
 int dayOfMonth)

format

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

format

public static String format(long timeMillis)

format

public static String format(Date date)

format

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

format

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

toString

public static String toString(Date date)

toString

public static String toString(long timeMillis,
 boolean timeZone,
 ZoneId zoneId)

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(String str)

isDate

public static boolean isDate(String str)

isLocalTime

public static boolean isLocalTime(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 ZoneOffset zoneOffset(byte[] bytes,
 int start,
 int len)

zoneOffset

public static 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)

ymd

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

yy

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