To ensure that you enter valid time zone names when configuring time zones for cardholder and visitor activation and expiration, create a custom data type containing all the time zones you want to use.
It is recommended to generate a list of time zones used by Windows to create the custom
data type because time zones entered in the Cardholder Time Zone and Visitor Time Zone custom fields are not validated. If you enter an
invalid value in the custom field, the local time of the client workstation is used, and you
are not notified that the value is invalid.