PHP Manual: Translate a Windows timezone into a system timezone

Object-oriented style (method):

public static stringfalse IntlTimeZone::getIDForWindowsID(string $timezoneId, stringnull $region = null)

Procedural style:

stringfalse intltz_get_id_for_windows_id(string $timezoneId, stringnull $region = null)

Translates a Windows timezone (e.g. "Pacific Standard Time") into a system timezone (e.g. "America/Los_Angeles").

Note: This function requires ICU version ≥ 52.

Warning

This function is currently not documented; only its argument list is available.

Returns the system timezone or false on failure.

Version	Description
8.0.0	`region` is now nullable.

IntlTimeZone::getIDForWindowsID