Time zones can be managed in Site Manager -> Development -> Time zones.
On this page, you can see a list of defined time zones. All time zones are displayed by default, but you can filter displayed items using the filter above the list. The only possible filtering parameter is the time zone Display name. If you type in the searched value and click the Show button, only those items that match the entered expression will be displayed in the list.
Time zones in the list can be Edited () or Deleted (). You can also create new time zones by clicking the New time zone link.
Creating a new time zone
In the following example, you will learn how to create a new time zone:
1. Go to Site Manager -> Development -> Time zones and click the New time zone link.
2. Fill in the details that you can see in the following screenshot:
3. Click OK. You have just created the time zone. Now if you switch back to the time zones list, you should see the the new time zone present among the records.
Page url: http://devnet.kentico.com/docs/devguide/index.html?managing_time_zones.htm