DS Clock - Synchronize your time with atomic time server
DS Clock is a digital desktop clock that displays variable date, time, and time zone information built from a format string. The program allows you to customize its look and feel, and can synchronize your computer's clock with Atomic Time Servers. You can select any combination of date and time, pick custom colors and fonts, set sound to play at the top of the hour. It also allows you to show a tool tip with upcoming reminders of Calendarscope.