<Global Settings>
Time/Country
<timezone_by_country_region>VALIDVALUE</timezone_by_country_region>
When this setting is enabled (on), the country_region_id setting has a higher priority than theĀ timezone setting. If there is a conflict, the country_region_id will be used. When this setting is disabled (off), the timezone setting will be used if there is a conflict.
off / on
on