NetTime - nettime is a time & attendance software solution.
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Meinberg NTP - NTP client and server download for different operating systems.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Chrony - Chrony is a pair of programs which are used to maintain the accuracy of the system clock on a...
TimeCamp - Simple and robust time tracking app to help you stay on the same page with your team while working from home.