Upgraded from 5.3.1 to 5.3.2. Installation was easy but noticed that all timed events were now happening an hour early in the Phoenix, AZ time zone (no daylight savings time here). The computer's clock time and date are correct. Clock settings in the Configuration tab of the UD Admin Console retained the correct time zone, but the DST box was checked but grayed out and the Admin Console clock was an hour fast. This could be corrected by pressing Synchronize Clock with the Computer's Time, but when the clock was synchronized with the NTP server ntp.pool.org with the Synchronize Now button, the Admin Console Time jumped ahead by an hour. NTP time is always reported as UTC time, and local time adjustments (including DST) is made by the client software, in this case, the Admin Console.
The only way I was eventually able to uncheck the DST box was to choose another time zone, and then go back to the Phoenix time zone. The DST box was now not grayed out and was unchecked. Problem solved.
