Use the below code to set the date timezone of web servers, for example for EST time zone (Eastern Standard Time).

SetEnv TZ America/Indianapolis

Make use of the below code for example for Pacific Time or time of Los Angeles.

SetEnv TZ America/Los_Angeles

Example of other locations includes:

America/Indianapolis - Eastern Standard Time (Indiana, most locations)
America/Indiana/Knox - Eastern Standard Time (Indiana, Starke County)
America/Chicago - Central Time
America/Denver - Mountain Time
America/Detroit - Eastern Time - Michigan (most locations)
America/Boise - Mountain Time (South Idaho, East Oregon)
America/Phoenix - Mountain Standard Time (Arizona)
America/Anchorage - Alaska Time
America/Yakutat - Alaska Time (Alaska panhandle neck)
America/Adak - Aleutian Islands
America/Detroit - Eastern Time - Michigan (most locations)
America/Indianapolis - Eastern Standard Time (Indiana, most locations)
America/Indiana/Knox - Eastern Standard Time (Indiana, Starke County)
America/Chicago - Central Time
America/Denver - Mountain Time
America/Shiprock - Mountain Time (Navajo)
America/Los_Angeles - Pacific Time
America/Juneau - Alaska Time (Alaska panhandle)
Pacific/Honolulu – Hawaii
America/Nome - Alaska Time (west Alaska)

It’s better to reach your system administrator to get more instruction on European and other timezones.