running clock

• tickingRhythmic mechanical sound
• countdownBackward enumeration to zero
• timerDuration-tracking mechanism
• stopwatchInterval timing device
• secondsTime units, or extras

minutes · hands · sweeping · urgent · deadline · meter · fare · buzzer · winding · mechanism · time · continuous · ongoing · active · live · broadcast · penalty · sports

• game clockschess clock, game clock, shot clock, play clock, pitch clock