unicode timezone list here....may help in projects
http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml
Here you'll find the complete list of timezones supported by PHP, which are meant to be used with e.g. date_default_timezone_set().
The behavior of timezones not listed here is undefined.
Note: The latest version of the timezone database can be installed via PECL's » timezonedb.
Note: This list is based upon the timezone database version 2018.4.
unicode timezone list here....may help in projects
http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml