Clock.saver - A simple clock screensaver based on Braun watches ⌚
Fliqlo Screensaver - A screensaver that displays the time using a flip clock.
Wren - Offset your carbon footprint by saving rainforests
Padbury Clock Screensaver - Minimal screensaver for Mac
Website Carbon Calculator - Find out the how much CO2 your website emits
Xscreensaver for Windows - XScreenSaverWin is a Windows port of XScreenSaver. 204 screensavers in XScreenSaver were ported.