clock in

/klɒk/

informal (UK also clock on)

to record the time you arrive at work on a special machine

(在专门的机器上)记录上班时间，打上班卡

What time did you clock in this morning?

今天早上你几点打的卡?

Clocking-in time is 9.00 a.m.

打卡时间是上午9点。

clock out

(UK also clock off)

to leave work, especially by recording the time you leave on a special machine

(尤指在专门的机器上)记录下班时间，打卡下班