The DateTimeZone class

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

Introduction

Representation of time zone.

Class synopsis

class DateTimeZone {

/* Constants */

public const int AFRICA;

public const int AMERICA;

public const int ANTARCTICA;

public const int ARCTIC;

public const int ASIA;

public const int ATLANTIC;

public const int AUSTRALIA;

public const int EUROPE;

public const int INDIAN;

public const int PACIFIC;

public const int UTC;

public const int ALL;

public const int ALL_WITH_BC;

public const int PER_COUNTRY;

/* Methods */

public __construct(string $timezone)

public getLocation(): array|false

public getName(): string

public getOffset(DateTimeInterface $datetime): int

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

public static listAbbreviations(): array

public static listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null): array

}

Predefined Constants

DateTimeZone::AFRICA: Africa time zones.
DateTimeZone::AMERICA: America time zones.
DateTimeZone::ANTARCTICA: Antarctica time zones.
DateTimeZone::ARCTIC: Arctic time zones.
DateTimeZone::ASIA: Asia time zones.
DateTimeZone::ATLANTIC: Atlantic time zones.
DateTimeZone::AUSTRALIA: Australia time zones.
DateTimeZone::EUROPE: Europe time zones.
DateTimeZone::INDIAN: Indian time zones.
DateTimeZone::PACIFIC: Pacific time zones.
DateTimeZone::UTC: UTC time zones.
DateTimeZone::ALL: All time zones.
DateTimeZone::ALL_WITH_BC: All time zones including backwards compatible.
DateTimeZone::PER_COUNTRY: Time zones per country.

DateTimeZone::__construct — Creates new DateTimeZone object
DateTimeZone::getLocation — Returns location information for a timezone
DateTimeZone::getName — Returns the name of the timezone
DateTimeZone::getOffset — Returns the timezone offset from GMT
DateTimeZone::getTransitions — Returns all transitions for the timezone
DateTimeZone::listAbbreviations — Returns associative array containing dst, offset and the timezone name
DateTimeZone::listIdentifiers — Returns a numerically indexed array containing all defined timezone identifiers

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User Contributed Notes 1 note

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Jarmo Troska ¶

10 months ago

Example of converting between timezones using the DateTime and DateTimeZone classes.

Note that PHP will also take care of calculating relevant daylight savings!

<?php

$utc_timezone = new DateTimeZone("UTC");

$tallinn_timezone = new DateTimeZone("Europe/Tallinn");

// Create a new DateTime object in the UTC format

$datetime = new DateTime("2023-01-01 11:00:00", $utc_timezone);

// Convert the DateTime object to the timezone of Tallinn

$datetime->setTimezone($tallinn_timezone);

// Display the result in the YYYY-MM-DD HH:MM:SS format

echo $datetime->format('Y-m-d H:i:s');

// Returns: 2023-01-01 13:00:00

?>