clock in

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

clock in phrasal verb ( UK also clock on ) informal [ clocks in clocking in clocked in clocked in clocked in ]
to record the time you arrive at work on a special machine
• What time did you clock in this morning?
• Clocking-in time is 9.00 a.m.
Thesaurus⁺: ↑Working hours and periods of work ↑Work, working and the workplace
Main entry: clock_{phrasal verb}