[youtube= Roy] designed this fine RGB LED desktop clock. It uses a PIC16F877A microcontroller and a DS1307N Real Time Clock. There is a ring of 12 RGB LEDs around the perimeter. Hours are indicated… ...

The Doomsday Clock is a symbolic clock: a metaphor for how close humanity is to self-annihilation, according to the Bulletin of the Atomic Scientists.

If the alarm clock is not working on Windows 11/10 PC, you need to check notifications settings, reset Clock, etc. to fix the issue.