school day

noun

1. any day on which school is conducted.
2. the daily hours during which school is conducted:

   The school day here is from nine to three.

Word History and Origins

Origin of school day¹

First recorded in 1580–90

Example Sentences

His preference, he said in an interview, would be “a ban throughout” the entire school day, lunch included, at schools across the state.

From Los Angeles Times

Mr Byrne said his brother's belongings, such as photos and items left over from his school days, were ruined - except for some set aside in a small suitcase.

From BBC

But phones would be off limits once the opening bell rings, including lunch or nutrition and other breaks, until the end of the school day.

From Los Angeles Times

The work didn’t stop at the end of the school day.

From Los Angeles Times

For all the dollar signs and headlines though, his first game of union since his school days will come at Test level, with unfamiliar team-mates alongside him and 80,000 fans in front of him.

From BBC