day in day out
US /deɪ ɪn deɪ aʊt/
UK /deɪ ɪn deɪ aʊt/

1.
setiap hari, terus-menerus
continuously or repeatedly over a long period of time
:
•
He does the same boring job day in day out.
Dia melakukan pekerjaan membosankan yang sama setiap hari.
•
The factory produces thousands of units day in day out.
Pabrik itu memproduksi ribuan unit setiap hari.