(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the canonical system timezone ID or the normalized custom time zone

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the amount of time to be added to local standard time to get local

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the time zone raw and GMT offset for the given moment in time

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Create a timezone object from

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get timezone ID

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Check if this time zone uses daylight savings time

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Check if this zone has the same rules and offset as another zone

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Create GMT (UTC) timezone

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the raw GMT offset (before taking daylight savings time into account

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get last error code on the object