21.3

java.util.Date

THE PACKAGE JAVA.UTIL

yyyy

 is the year, as four decimal digits.

hh

 is the hour of the day (

00

 through

23

), as two decimal digits.

mm

 is the minute within the hour (

00

 through

59

), as two decimal digits.

ss

 is the second within the minute (

00

 through

61

), as two decimal digits.

GMT

 is exactly the ASCII letters  

GMT

  to indicate Greenwich Mean Time.

The result does not depend on the local time zone.

See also methods

toString

 ( 21.3.7) and

toLocaleString

 ( 21.3.27).

21.3.29

public int getTimezoneOffset()

This method returns the offset, measured in minutes, for the local time zone rela 

tive to UTC that is appropriate for the time represented by this

Date

 object.

For example, in Massachusetts, five time zones west of Greenwich:

new Date(96, 1, 14).getTimezoneOffset()

returns

 300

because on February 14, 1996, standard time (Eastern Standard Time) is in use,

which is offset five hours from UTC; but:

new Date(96, 5, 1).getTimezoneOffset()

returns

 240

because on May 1, 1996, daylight saving time (Eastern Daylight Time) is in use,

which is offset only four hours from UTC.

This method produces the same result as if it computed:

(this.getTime()   UTC(this.getYear(),

this.getMonth(),

this.getDate(),

this.getHours(),

this.getMinutes(),

this.getSeconds())) / (60 * 1000)

21.3.30

public static long UTC(int year, int month, int date,

int hours, int minutes, int seconds)

The arguments are interpreted as a year, month, day of the month, hour of the day,

minute within the hour, and second within the minute, exactly as for the

Date

 con 

structor of six arguments ( 21.3.5), except that the arguments are interpreted rela 

tive to UTC rather than to the local time zone. The time indicated is returned

represented as the distance, measured in milliseconds, of that time from the epoch

(00:00:00 GMT on January 1, 1970).

630