Chrony - Chrony is a pair of programs which are used to maintain the accuracy of the system clock on a...
NetTime - nettime is a time & attendance software solution.
TimeLeft - TimeLeft is a versatile desktop utility - it can be used as a countdown clock, reminder, clock...
TicTocTitle - Displays the current date and time in the active titlebar.
Dimension 4 - The fastest and easiest way to synchronize your Windows clock.
Dial - Quick & beautiful macOS timer.