org.apache.commons.lang.time
Class DateFormatUtils

java.lang.Object
  org.apache.commons.lang.time.DateFormatUtils

public class DateFormatUtils
extends Object

Date and time formatting utilities and constants.

Formatting is performed using the FastDateFormat class.

Since:

2.0

Version:

$Id: DateFormatUtils.java 905636 2010-02-02 14:03:32Z niallp $

Author:

Apache Software Foundation, Apache Ant - DateUtils, Stephane Bailliez, Stefan Bodewig, Gary Gregory

Field Summary

static FastDateFormat	ISO_DATE_FORMAT ISO8601 formatter for date without time zone.
static FastDateFormat	ISO_DATE_TIME_ZONE_FORMAT ISO8601-like formatter for date with time zone.
static FastDateFormat	ISO_DATETIME_FORMAT ISO8601 formatter for date-time without time zone.
static FastDateFormat	ISO_DATETIME_TIME_ZONE_FORMAT ISO8601 formatter for date-time with time zone.
static FastDateFormat	ISO_TIME_FORMAT ISO8601 formatter for time without time zone.
static FastDateFormat	ISO_TIME_NO_T_FORMAT ISO8601-like formatter for time without time zone.
static FastDateFormat	ISO_TIME_NO_T_TIME_ZONE_FORMAT ISO8601-like formatter for time with time zone.
static FastDateFormat	ISO_TIME_TIME_ZONE_FORMAT ISO8601 formatter for time with time zone.
static FastDateFormat	SMTP_DATETIME_FORMAT SMTP (and probably other) date headers.

Constructor Summary

DateFormatUtils()
DateFormatUtils instances should NOT be constructed in standard programming.

Method Summary

static String	format(Calendar calendar, String pattern) Formats a calendar into a specific pattern.
static String	format(Calendar calendar, String pattern, Locale locale) Formats a calendar into a specific pattern in a locale.
static String	format(Calendar calendar, String pattern, TimeZone timeZone) Formats a calendar into a specific pattern in a time zone.
static String	format(Calendar calendar, String pattern, TimeZone timeZone, Locale locale) Formats a calendar into a specific pattern in a time zone and locale.
static String	format(Date date, String pattern) Formats a date/time into a specific pattern.
static String	format(Date date, String pattern, Locale locale) Formats a date/time into a specific pattern in a locale.
static String	format(Date date, String pattern, TimeZone timeZone) Formats a date/time into a specific pattern in a time zone.
static String	format(Date date, String pattern, TimeZone timeZone, Locale locale) Formats a date/time into a specific pattern in a time zone and locale.
static String	format(long millis, String pattern) Formats a date/time into a specific pattern.
static String	format(long millis, String pattern, Locale locale) Formats a date/time into a specific pattern in a locale.
static String	format(long millis, String pattern, TimeZone timeZone) Formats a date/time into a specific pattern in a time zone.
static String	format(long millis, String pattern, TimeZone timeZone, Locale locale) Formats a date/time into a specific pattern in a time zone and locale.
static String	formatUTC(Date date, String pattern) Formats a date/time into a specific pattern using the UTC time zone.
static String	formatUTC(Date date, String pattern, Locale locale) Formats a date/time into a specific pattern using the UTC time zone.
static String	formatUTC(long millis, String pattern) Formats a date/time into a specific pattern using the UTC time zone.
static String	formatUTC(long millis, String pattern, Locale locale) Formats a date/time into a specific pattern using the UTC time zone.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ISO_DATETIME_FORMAT

public static final FastDateFormat ISO_DATETIME_FORMAT

ISO8601 formatter for date-time without time zone. The format used is yyyy-MM-dd'T'HH:mm:ss.

ISO_DATETIME_TIME_ZONE_FORMAT

public static final FastDateFormat ISO_DATETIME_TIME_ZONE_FORMAT

ISO8601 formatter for date-time with time zone. The format used is yyyy-MM-dd'T'HH:mm:ssZZ.

ISO_DATE_FORMAT

public static final FastDateFormat ISO_DATE_FORMAT

ISO8601 formatter for date without time zone. The format used is yyyy-MM-dd.

ISO_DATE_TIME_ZONE_FORMAT

public static final FastDateFormat ISO_DATE_TIME_ZONE_FORMAT

ISO8601-like formatter for date with time zone. The format used is yyyy-MM-ddZZ. This pattern does not comply with the formal ISO8601 specification as the standard does not allow a time zone without a time.

ISO_TIME_FORMAT

public static final FastDateFormat ISO_TIME_FORMAT

ISO8601 formatter for time without time zone. The format used is 'T'HH:mm:ss.

ISO_TIME_TIME_ZONE_FORMAT

public static final FastDateFormat ISO_TIME_TIME_ZONE_FORMAT

ISO8601 formatter for time with time zone. The format used is 'T'HH:mm:ssZZ.

ISO_TIME_NO_T_FORMAT

public static final FastDateFormat ISO_TIME_NO_T_FORMAT

ISO8601-like formatter for time without time zone. The format used is HH:mm:ss. This pattern does not comply with the formal ISO8601 specification as the standard requires the 'T' prefix for times.

ISO_TIME_NO_T_TIME_ZONE_FORMAT

public static final FastDateFormat ISO_TIME_NO_T_TIME_ZONE_FORMAT

ISO8601-like formatter for time with time zone. The format used is HH:mm:ssZZ. This pattern does not comply with the formal ISO8601 specification as the standard requires the 'T' prefix for times.

SMTP_DATETIME_FORMAT

public static final FastDateFormat SMTP_DATETIME_FORMAT

SMTP (and probably other) date headers. The format used is EEE, dd MMM yyyy HH:mm:ss Z in US locale.

Constructor Detail

DateFormatUtils

public DateFormatUtils()

DateFormatUtils instances should NOT be constructed in standard programming.

This constructor is public to permit tools that require a JavaBean instance to operate.

Method Detail

formatUTC

public static String formatUTC(long millis,
                               String pattern)

Formats a date/time into a specific pattern using the UTC time zone.

Parameters:

millis - the date to format expressed in milliseconds

pattern - the pattern to use to format the date

Returns:

the formatted date

formatUTC

public static String formatUTC(Date date,
                               String pattern)

Formats a date/time into a specific pattern using the UTC time zone.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

Returns:

the formatted date

formatUTC

public static String formatUTC(long millis,
                               String pattern,
                               Locale locale)

Formats a date/time into a specific pattern using the UTC time zone.

Parameters:

millis - the date to format expressed in milliseconds

pattern - the pattern to use to format the date

locale - the locale to use, may be null

Returns:

the formatted date

formatUTC

public static String formatUTC(Date date,
                               String pattern,
                               Locale locale)

Formats a date/time into a specific pattern using the UTC time zone.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

locale - the locale to use, may be null

Returns:

the formatted date

format

public static String format(long millis,
                            String pattern)

Formats a date/time into a specific pattern.

Parameters:

millis - the date to format expressed in milliseconds

pattern - the pattern to use to format the date

Returns:

the formatted date

format

public static String format(Date date,
                            String pattern)

Formats a date/time into a specific pattern.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

Returns:

the formatted date

format

public static String format(Calendar calendar,
                            String pattern)

Formats a calendar into a specific pattern.

Parameters:

calendar - the calendar to format

pattern - the pattern to use to format the calendar

Returns:

the formatted calendar

Since:

2.4

See Also:

FastDateFormat.format(Calendar)

format

public static String format(long millis,
                            String pattern,
                            TimeZone timeZone)

Formats a date/time into a specific pattern in a time zone.

Parameters:

millis - the time expressed in milliseconds

pattern - the pattern to use to format the date

timeZone - the time zone to use, may be null

Returns:

the formatted date

format

public static String format(Date date,
                            String pattern,
                            TimeZone timeZone)

Formats a date/time into a specific pattern in a time zone.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

timeZone - the time zone to use, may be null

Returns:

the formatted date

format

public static String format(Calendar calendar,
                            String pattern,
                            TimeZone timeZone)

Formats a calendar into a specific pattern in a time zone.

Parameters:

calendar - the calendar to format

pattern - the pattern to use to format the calendar

timeZone - the time zone to use, may be null

Returns:

the formatted calendar

Since:

2.4

See Also:

FastDateFormat.format(Calendar)

format

public static String format(long millis,
                            String pattern,
                            Locale locale)

Formats a date/time into a specific pattern in a locale.

Parameters:

millis - the date to format expressed in milliseconds

pattern - the pattern to use to format the date

locale - the locale to use, may be null

Returns:

the formatted date

format

public static String format(Date date,
                            String pattern,
                            Locale locale)

Formats a date/time into a specific pattern in a locale.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

locale - the locale to use, may be null

Returns:

the formatted date

format

public static String format(Calendar calendar,
                            String pattern,
                            Locale locale)

Formats a calendar into a specific pattern in a locale.

Parameters:

calendar - the calendar to format

pattern - the pattern to use to format the calendar

locale - the locale to use, may be null

Returns:

the formatted calendar

Since:

2.4

See Also:

FastDateFormat.format(Calendar)

format

public static String format(long millis,
                            String pattern,
                            TimeZone timeZone,
                            Locale locale)

Formats a date/time into a specific pattern in a time zone and locale.

Parameters:

millis - the date to format expressed in milliseconds

pattern - the pattern to use to format the date

timeZone - the time zone to use, may be null

locale - the locale to use, may be null

Returns:

the formatted date

format

public static String format(Date date,
                            String pattern,
                            TimeZone timeZone,
                            Locale locale)

Formats a date/time into a specific pattern in a time zone and locale.

Parameters:

date - the date to format

pattern - the pattern to use to format the date

timeZone - the time zone to use, may be null

locale - the locale to use, may be null

Returns:

the formatted date

format

public static String format(Calendar calendar,
                            String pattern,
                            TimeZone timeZone,
                            Locale locale)

Formats a calendar into a specific pattern in a time zone and locale.

Parameters:

calendar - the calendar to format

pattern - the pattern to use to format the calendar

timeZone - the time zone to use, may be null

locale - the locale to use, may be null

Returns:

the formatted calendar

Since:

2.4

See Also:

FastDateFormat.format(Calendar)