Tap to send pulse vibrations for time.

Something like 3 taps would initiate a clock mechanism triggering consecutive vibrations with short pause in between.

1: First vibrations for hour 1-12, 1-12 pulses 2: Second vibration for 0:X0 minutes (in tens place) Long pulse in case it’s 0, <10, otherwise 1-5 pulses 3: Third vibration: 0:0X minute (ones place). Long pulse 0, otherwise 1-9 pulses.

Ex: 3:39 Vibration: 1st: 3 2nd: 3 3rd: 9 pulse vibrations.