ClocX - ClocX - freeware analog clock for Windows desktop with many features like calendar, alarms, skins, antialiasing and transparency.
KDE Plasma Desktop - Plasma Workspaces is the umbrella term for all graphical environments provided by KDE.
T-Clock Redux - T-Clock Redux in an enhanced fork of Stoic Joker's T-Clock 2010 with ISO week number support...
Open Sidebar - Open Sidebar is a vertical bar on your Windows Desktop that helps you keep your gadgets organized.
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.
8GadgetPack - 8GadgetPack makes it possible to use gadgets on Windows 8 / 8.1 / 10.