Developer website: UmunhumSoft
Persistachron is a simple translucent digital clock which floats over most windows of most other applications. It displays hours, minutes, and seconds. It is small so it won't often get in the way, though it can be hidden or quit in the usual manner of applications when it is not needed.
Advantages over using just the menu-bar clock:
- Easier to see.
- May still be there when the menu bar is hidden by applications that take over the whole screen (this depends on the application, however).
- Font, font size, and the color of the time can be adjusted.
- Location of the time window (clock face) can be adjusted.
- OS X 10.7 or later