PHP Manual
intl
The IntlTimeZone class

The IntlTimeZone class

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

Introduction

Class synopsis

class IntlTimeZone {

/* Constants */

const int DISPLAY_SHORT = 1;

const int DISPLAY_LONG = 2;

/* Methods */

private __construct()

public static countEquivalentIDs(string $timezoneId): int|false

public static createDefault(): IntlTimeZone

public static createTimeZone(string $timezoneId): ?IntlTimeZone

public static createTimeZoneIDEnumeration(int $type, ?string $region = null, ?int $rawOffset = null): IntlIterator|false

public static fromDateTimeZone(DateTimeZone $timezone): ?IntlTimeZone

public static getCanonicalID(string $timezoneId, bool &$isSystemId = null): string|false

public getDisplayName(bool $dst = false, int $style = IntlTimeZone::DISPLAY_LONG, ?string $locale = null): string|false

public getDSTSavings(): int

public static getEquivalentID(string $timezoneId, int $offset): string|false

public getErrorCode(): int|false

public getErrorMessage(): string|false

public static getGMT(): IntlTimeZone

public getID(): string|false

public static getIDForWindowsID(string $timezoneId, ?string $region = null): string|false

public getOffset(
    float $timestamp,
    bool $local,
    int &$rawOffset,
    int &$dstOffset
): bool

public getRawOffset(): int

public static getRegion(string $timezoneId): string|false

public static getTZDataVersion(): string|false

public static getUnknown(): IntlTimeZone

public static getWindowsID(string $timezoneId): string|false

public hasSameRules(IntlTimeZone $other): bool

public toDateTimeZone(): DateTimeZone|false

public useDaylightTime(): bool

}

Predefined Constants

IntlTimeZone::DISPLAY_SHORT
IntlTimeZone::DISPLAY_LONG

IntlTimeZone::__construct — Private constructor to disallow direct instantiation
IntlTimeZone::countEquivalentIDs — Get the number of IDs in the equivalency group that includes the given ID
IntlTimeZone::createDefault — Create a new copy of the default timezone for this host
IntlTimeZone::createEnumeration — Get an enumeration over time zone IDs associated with the given country or offset
IntlTimeZone::createTimeZone — Create a timezone object for the given ID
IntlTimeZone::createTimeZoneIDEnumeration — Get an enumeration over system time zone IDs with the given filter conditions
IntlTimeZone::fromDateTimeZone — Create a timezone object from DateTimeZone
IntlTimeZone::getCanonicalID — Get the canonical system timezone ID or the normalized custom time zone ID for the given time zone ID
IntlTimeZone::getDisplayName — Get a name of this time zone suitable for presentation to the user
IntlTimeZone::getDSTSavings — Get the amount of time to be added to local standard time to get local wall clock time
IntlTimeZone::getEquivalentID — Get an ID in the equivalency group that includes the given ID
IntlTimeZone::getErrorCode — Get last error code on the object
IntlTimeZone::getErrorMessage — Get last error message on the object
IntlTimeZone::getGMT — Create GMT (UTC) timezone
IntlTimeZone::getID — Get timezone ID
IntlTimeZone::getIDForWindowsID — Translate a Windows timezone into a system timezone
IntlTimeZone::getOffset — Get the time zone raw and GMT offset for the given moment in time
IntlTimeZone::getRawOffset — Get the raw GMT offset (before taking daylight savings time into account
IntlTimeZone::getRegion — Get the region code associated with the given system time zone ID
IntlTimeZone::getTZDataVersion — Get the timezone data version currently used by ICU
IntlTimeZone::getUnknown — Get the "unknown" time zone
IntlTimeZone::getWindowsID — Translate a system timezone into a Windows timezone
IntlTimeZone::hasSameRules — Check if this zone has the same rules and offset as another zone
IntlTimeZone::toDateTimeZone — Convert to DateTimeZone object
IntlTimeZone::useDaylightTime — Check if this time zone uses daylight savings time