This project implements a Garmin Connect IQ Widget that provides a countdown timer. The timer can be configured in hours, minutes and seconds by using the Menu button. The timer is started or reset by pressing the Start or Lap button. Pause pauses the tier.
An installable version built for the Garmin Edge 530 is available under the Release tab.
To install, connect Garmin to computer via USB and copy the Countdown.prg file to your device's /Garmin/Apps folder.