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DateTimeZone::getOffset
timezone_offset_get
(PHP 5 >= 5.2.0, PHP 7)
DateTimeZone::getOffset -- timezone_offset_get — Returns the timezone offset from GMT
Description
Object oriented style
Procedural style
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 DateTimeZone object being used.
Parameters
-
object -
Procedural style only: A DateTimeZone object returned by timezone_open()
-
datetime -
DateTime that contains the date/time to compute the offset from.
Changelog
| Version | Description |
|---|---|
| 5.5.19, 5.6.3 |
datetime type changed to
DateTimeInterface.
Previously, DateTime.
|
Examples
Example #1 DateTimeZone::getOffset() 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);
?>
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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