AutoHotkey - The ultimate automation scripting language for Windows.
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
T-Clock Redux - T-Clock Redux in an enhanced fork of Stoic Joker's T-Clock 2010 with ISO week number support...
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.
ClocX - ClocX - freeware analog clock for Windows desktop with many features like calendar, alarms, skins, antialiasing and transparency.