clock on

US /klɑːk ɑːn/
UK /klɑːk ɑːn/
"clock on" picture
1.

pointer, enregistrer son arrivée

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

:
I need to clock on by 9 AM to avoid being late.
Je dois pointer avant 9h du matin pour ne pas être en retard.
He always clocks on exactly at 8 AM.
Il pointe toujours exactement à 8h du matin.