A simple digital clock with 3 extra buttons: 2 of them to log the time, 1 with chronometer and tachymeter (long press to reset).

I made it to have a quick way to mark the time when I fed the baby last time or when I had put something in the oven.

Details on this clock can be found in here: https://github.com/alessandrodeste/fitbit-tooloclock

Feel free to submit requests and feedback. Thank you! :)