/* Check if the time zone is valid. Valid values are between -1440 and 1440 or 2047 (EFI_UNSPECIFIED_TIMEZONE). */
BOOLEAN EFIAPI IsValidTimeZone(IN INT16 TimeZone)
/* Check if the time zone is valid. Valid values are between -1440 and 1440 or 2047 (EFI_UNSPECIFIED_TIMEZONE). */
BOOLEAN EFIAPI IsValidTimeZone(IN INT16 TimeZone)
{
  return TimeZone == EFI_UNSPECIFIED_TIMEZONE ||
         (TimeZone >= -1440 && TimeZone <= 1440);
}