The term "after hours" refers to a period of time outside the regular working hours or business hours. This typically means the time when businesses are closed, such as after 5 PM or 6 PM, but it can also refer to times when something is typically not available or when activities occur beyond the standard schedule.
The phrase "after hours" combines the word "after," which comes from Old English "æfter," meaning "following in time or position," and "hours," which comes from Old French "hore," derived from Latin "hora," meaning "a period of time."