For the past four months, we’ve been on standard time. But overnight Saturday, we’ll turn our clocks ahead one hour at 2 a.m., effectively making it 3 a.m. (So don’t schedule any important meetings at 2:30 a.m., because that time won’t exist Sunday — and is not a great time for a meeting, anyway).

Daylight saving time is the period between the second Sunday of March and the first Sunday of November when clocks for most states in the U.S. shift back for one hour.

Daylight saving time is about to begin again, despite sleep experts (and the president) wanting to eliminate time changes.