Meaning of the word "clock in" in English

What does "clock in" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

clock in

US /klɑːk ɪn/
UK /klɒk ɪn/
"clock in" picture

Phrasal Verb

to record one's arrival at work, especially by punching a time clock

Example:
I need to clock in before 9 AM.
Don't forget to clock in when you arrive.
Antonym: