PHP Manual
DateTimeZone
Returns all transitions for the timezone

DateTimeZone::getTransitions

timezone_transitions_get

(PHP 5 >= 5.2.0, PHP 7)

DateTimeZone::getTransitions -- timezone_transitions_get — Returns all transitions for the timezone

Description

Object oriented style

public DateTimeZone::getTransitions ([ int $timestampBegin = PHP_INT_MIN [, int $timestampEnd = PHP_INT_MAX ]] ) : array|false

Procedural style

timezone_transitions_get ( DateTimeZone $object [, int $timestampBegin = PHP_INT_MIN [, int $timestampEnd = PHP_INT_MAX ]] ) : array|false

Parameters

object: Procedural style only: A DateTimeZone object returned by timezone_open()
timestampBegin: Begin timestamp.
timestampEnd: End timestamp.

Return Values

Returns a numerically indexed array of transition arrays on success, or FALSE on failure.

**Transition Array Structure**
Key	Type	Description
`ts`	int	Unix timestamp
`time`	string	`DateTimeInterface::ISO8601` time string
`offset`	int	Offset to UTC in seconds
`isdst`	bool	Whether daylight saving time is active
`abbr`	string	Timezone abbreviation

Examples

Example #1 A timezone_transitions_get() example

<?php$timezone = new DateTimeZone("Europe/London");$transitions = $timezone->getTransitions();print_r(array_slice($transitions, 0, 3));?>

The above example will output something similar to:

Array
(
    [0] => Array
        (
            [ts] => -9223372036854775808
            [time] => -292277022657-01-27T08:29:52+0000
            [offset] => 3600
            [isdst] => 1
            [abbr] => BST
        )

    [1] => Array
        (
            [ts] => -1691964000
            [time] => 1916-05-21T02:00:00+0000
            [offset] => 3600
            [isdst] => 1
            [abbr] => BST
        )

    [2] => Array
        (
            [ts] => -1680472800
            [time] => 1916-10-01T02:00:00+0000
            [offset] => 0
            [isdst] => 
            [abbr] => GMT
        )

)

Php/docs/datetimezone.gettransitions

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