long hour

a little of something goes a long way

Only a small amount of something is usually required to produce a great effect.

a week is a long time in politics

In politics, much change can occur in a short space of time.

amateur hour

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

as the day is long

Unceasingly; very; thoroughly; to a very high degree.

come a long way

To make significant progress.

draw a long bow

To lie; to exaggerate.

draw the long bow

To exaggerate; to tell tall tales.

eleventh-hour

Just before the moment that it is too late; in the nick of time; last-minute.