Studioclock (free!)

Free studioclock for everyone! A professional, clean, and customizable digital clock designed for studio environments. No ads. Just open your Chrome browser in kiosk mode, open this url: https://digiplay.nl/studioclock/clock.html?stationname=Digiplay.nl (don't worry, you can customize the shown name) and you're done!

This is how it looks:

See https://digiplay.nl/studioclock/ for usage and extended documentation. You can also build yourself a Raspberry Pi (4 or higher) and set it in kiosk mode for showing this studioclock. See PiOSK (external) for more info.