(PHP 5 >= 5.2.0, PHP 7)
Returns the timezone offset from GMT
public int DateTimeZone::getOffset ( DateTime $datetime )
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.
Returns:
Returns time zone offset in seconds on success or FALSE
on failure.
Examples:
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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