For people working the night shift, one legal hour is officially counted as exactly 52 minutes and 30 seconds.

Trouble-o-Meter
Companies are routinely taken to labor courts for miscalculating this.

Status: still on the books

Why Is This a Law?

In 1943, the government recognized that working in the middle of the night is physically harder than daytime work. By shortening the legal hour, night workers reach their overtime pay much faster.

A citizen earnestly dealing with the law: For people working the night shift, one legal hour is officially counted as exactly 52 minutes and 30 seconds.