eleventh-hour

amateur hour

A situation or activity in which the participants show a lack of skill, sound judgment, or professionalism.

finest hour

A point in time or a relatively brief period of time when an especially distinguished, admirable, or effective set of actions is performed.

long hour

Any of the late hours of the day, especially those nearing midnight, or the hours after sunset.

rush hour

The times of the day when traffic jams are commonplace, due mainly to people commuting to or from work.

top of the hour

The time at (or very close to) the start of the next hour of time.

woman of the hour

A woman who has recently caught the attention of, or is being admired or honoured by, a large number of people.