Click on the timers, the blank one is explained. Press t to find out how many minutes are left.
Unfortunately the timer is only in seconds, and the interactive only works if you answer with how many minutes you want it to last for. For 10 seconds enter 0.1666, for 6 seconds enter 0.1, for 30 seconds enter 0.5, for 15 seconds enter 0.25, and for 5 seconds enter 0.0833. Leave a comment to tell me of any improvements I could make.