idioms involving “clock”

Clock in

To punch a timecard (begin the day’s work)

“Sakiguchi-san forgot to clock in when she arrived at the office this morning.” Note: To clock out is to punch a timecard to end the day’s work.

Clock watcher

A lazy worker

“The new clerk already has a reputation as a clock watcher.”

Around the clock

24 hours a day

“The software team worked around the clock to meet the project deadline.”

Clock at

To measure speed

“The typist was clocked at 90 word per minute.”

Clean one’s clock

To defeat easily

“Fujiya-san was top saleswoman last year but Ando-san cleaned her clock this year.”