after hours

Beyond the established time that something typically closes or ends. I had to stay after hours in order to finish that report. My father is friends with the shop owner, so she opened it after hours just for me.

after the regular closing time; after any normal or regular time, such as one's bedtime. John got a job sweeping floors in the library after hours.

After normal working hours, after closing time; also, after legal or established opening hours. For example, I haven't time while the shop is open, but I can see you after hours, or The restaurant employees sometimes stayed for a meal after hours. This term originally referred to laws governing business hours. It also gave rise to the term after-hours club, for a drinking club that remained open later than similar establishments. [Mid-1800s]