noun
written request for permission to leave early
A formal document submitted at school or work to request early departure. Often a standard form.
体調が悪いので、早退届を出して帰りました。
I wasn't feeling well, so I submitted an early-leave request and went home.
早退届は前日までに提出してください。
Please submit the early-leave request by the day before.
Compound of 早退 (early departure) and 届 (notification, report).