timezone_offset_get

(PHP 5 >= 5.1.0)

timezone_offset_get — Returns the timezone offset from GMT

Description

int timezone_offset_get ( DateTimeZone $object , DateTime $datetime )

int DateTimeZone::getOffset ( DateTime $datetime )

This function returns the offset to GMT for the date/time specified in the datetime parameter. The GMT offset is calculated with the timezone information contained in the DateTime object being used.

Parameters

object: DateTimeZone object.
datetime: DateTime that contains the date/time to compute the offset from.

Return Values

Returns time zone offset in seconds on success or FALSE on failure.

Examples

Example #1 timezone_offset_get() examples


<?php

// Create two timezone objects, one for Taipei (Taiwan) and one for

// Tokyo (Japan)

$dateTimeZoneTaipei = new DateTimeZone("Asia/Taipei");

$dateTimeZoneJapan = new DateTimeZone("Asia/Tokyo");



// Create two DateTime objects that will contain the same Unix timestamp, but

// have different timezones attached to them.

$dateTimeTaipei = new DateTime("now", $dateTimeZoneTaipei);

$dateTimeJapan = new DateTime("now", $dateTimeZoneJapan);



// Calculate the GMT offset for the date/time contained in the $dateTimeTaipei

// object, but using the timezone rules as defined for Tokyo

// ($dateTimeZoneJapan).

$timeOffset = $dateTimeZoneJapan->getOffset($dateTimeTaipei);



// Should show int(32400) (for dates after Sat Sep 8 01:00:00 1951 JST).

var_dump($timeOffset);

?>