clock on
US /klɑːk ɑːn/
UK /klɑːk ɑːn/

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.