Online Alarm Kur - Free online alarm clock, set alarm easily on your computer using the internet alarm clock without downloading any software, wake up in time with the loud online alarm clock.
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
SnapTimer - SnapTimer is a simple, free, portable countdown timer for Windows.
KukuKlok - Kukuklok is a free alarm clock available online and offline.
Free Countdown Timer - Free Countdown Timer is a free, full-featured and user-friendly countdown timer for Windows
MetaClock.com - MetaClock is an Online Alarm Clock that can play YouTube videos and uploaded MP3s as an alarm tune. It supports Chromecast which means you can turn your TV or stereo system into an alarm clock. No installation is needed, it can also work offline.