(intransitive, informal) to leave work, especially by recording the leaving time on a machine

(intransitive) To end work; to officially record a time when one terminates a period of work. / (transitive) To officially record a work-termination time for.

(chemistry) Any mixture of compounds whose relative concentrations oscillate, and in which such change is marked by a visible rhythmic change in colour.

continually looking at the time to see how much longer one has to work or study

(idiomatic) Alternative form of round-the-clock.

(idiomatic) nonstop, 24 hours per day.

A variant of the game of darts in which players attempt to hit each section of the dartboard sequentially, from lowest to highest number.

A device for measuring time by letting water flow out of a container, usually through a tiny aperture. / A clepsydra.

(military) A technique of timing the delivery of fires by placing all units on a common time. The synchronized clock uses a specific hour and minute based on either local or universal time. Local time is established using the local time zone.

Any timepiece that makes use of the piezoelectric property of a quartz crystal.