punch in
US /pʌntʃ ɪn/
UK /pʌntʃ ɪn/

1.
fichar, registrar la entrada
to record one's arrival at work, typically using a time clock
:
•
Don't forget to punch in when you get to the office.
No olvides fichar cuando llegues a la oficina.
•
Employees are required to punch in at the start of their shift.
Se requiere que los empleados fichen al inicio de su turno.