AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.
AutoHotkey - The ultimate automation scripting language for Windows.
Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.