I made this to be a visual timer for meeting segments paired with OBS.
https://jimmydigital.github.io/onair-countdown-timer/?time=10
https://jimmydigital.github.io/onair-countdown-timer/?time=90&label=Dashboard&stop=true
- time = time in seconds
- stop = [true|false] - Stop the timer or start counting up in red (default)
- label = 'text' - Short label for the timer
- timeUntil = 18:03 - Countdown until the given time in 24 hour format local to your TZ. Stops at the end by default.