written request for permission to leave early
A formal document submitted at school or work to request early departure. Often a standard form.
I wasn't feeling well, so I submitted an early-leave request and went home.
Please submit the early-leave request by the day before.
遅刻届 is a written notice for being late, whereas 早退届 is for leaving early.
Standard kanji spelling.
Variant with okurigana け; both spellings are used.
Compound of 早退 (early departure) and 届 (notification, report).