Description

   The Get User Time routine returns the system time and inaccuracy
   in a binary timestamp. The routine takes the TDF from the
   user's environment, which determines the time zone rule.
   OpenVMS systems do not have a default time zone rule. You
   select a time zone by defining sys$timezone_rule during the
   sys$manager:net$configure.com procedure, or by explicitly
   defining sys$timezone_rule.