Barcode Alarm Clock - Alarm clock that won't stop ringing until you scan a barcode

T-Clock Redux - T-Clock Redux in an enhanced fork of Stoic Joker's T-Clock 2010 with ISO week number support...

Wake N Shake Alarm Clock - Wake up with a jolt of energy ready to get shit done.

ClocX - ClocX - freeware analog clock for Windows desktop with many features like calendar, alarms, skins, antialiasing and transparency.

Toonie Alarm - Want to wake up on time and make your day brighter? Fancy getting rewards waking up?

DS Clock - Keep your time synchronized with Atomic Time servers, using customizable digital desktop clock with westminster chimes.