Hourglass - Hourglass is the most advanced simple countdown timer for Windows.

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.

TimeMe - TimeMe is a multi-functional timer designed for sports training and workouts, cooking, school breaks, and coffee breaks.

KukuKlok - Kukuklok is a free alarm clock available online and offline.

Online Stopwatch and Timers - Sometimes everybody need to count time for some reason.

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.