Call it a day

Meaning

Decide to stop doing something, typically work, for the rest of the day.

Usage

Common in professional settings to signal wrapping up and resuming later.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Means to stop work for the day; the exact origin is unclear.

Recorded in English since the 19th century.