time-keeper
Official with stopwatch
A time-keeper is someone who records or monitors time, especially the duration of events: the official who tracks game time in sports, the person recording workers' hours, or anyone responsible for keeping a meeting on schedule.
The time-keeper signaled that the speaker had one minute left.
A time-keeper can also be a device—a clock or watch—judged by its accuracy: This old watch is still a reliable time-keeper.
Portable timekeeping device
- clockDevice displaying time
- timepieceHour-measuring device
- stopwatchInterval timing device
- timerDuration-tracking mechanism
chronograph · sundial · hourglass · metronome · chronometer · wristwatch · pocketwatch · grandfather clock
One who directs musicians
- drummerOne who keeps rhythm
- metronomeAdjustable beat-marking device
- bandleaderDirector of musical ensemble
- click trackAudible beat for synchronization
pace setter · baton · downbeat
Aligning timing across systems
- punctualityBeing on time
- accuracyDegree of correctness
- calibrationAdjusting for measurement accuracy
- GreenwichLondon district, meridian origin
UTC · chronology · scheduling · countdown · split-second · timing · regulation · standardization
Sports rule enforcer
- umpireSports match official
- judgeOne who decides
- scorekeeperOne who tracks points
- marshalArrange in proper order
steward · race official · boxing referee · bell ringer · match official
watch
Portable timekeeping device
timer · chronograph · sundial · hourglass · metronome · chronometer · wristwatch · pocketwatch · grandfather clock · cuckoo clock
conductor
One who directs musicians
- drummerOne who keeps rhythm
- metronomeAdjustable beat-marking device
- bandleaderDirector of musical ensemble
click track · pace setter · baton · downbeat
synchronization
Aligning timing across systems
- punctualityBeing on time
- accuracyDegree of correctness
- calibrationAdjusting for measurement accuracy
Greenwich · UTC · chronology · scheduling · countdown · split-second · timing · regulation · standardization
referee
Sports rule enforcer
- umpireSports match official
- judgeOne who decides
- scorekeeperOne who tracks points
marshal · steward · race official · boxing referee · bell ringer · match official
time-keepertime-waster
Unproductive activity or person
dawdler · procrastinator · loiterer · foot-dragger · latecomer