Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
Gnome Clocks - Clock application designed for GNOME 3
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.
Digital Clock 4 - Beautiful customizable clock with plugins
Alarm Clock Pro - iTunes alarm clock, stop watch, timer, and more!