Clock Tray Skins - Version 4.3 Clock Tray Skins is the advanced replacement for standard Windows tray clock. See the time, seconds, day, date, percent of memory in use and system UpTime in different skins. Displays the time for any of the time zones. Over 130 skins are included in the distribution. Support Longhorn clock style.It's also an atomic-time synchronizer and Calendar.