It's daylight savings time. Tonight we'll all go around setting our clocks ahead one hour (unless you forget in which case you'll be running around tomorrow morning doing it) in the mistaken belief the days will get longer. Obviously adjusting a clock has no bearing whatever on how much daylight we are going to get. What we're doing is simply making the day longer at night but shorter in the morning under the belief that it's more desirable to have more light at night.
This tradition started as an energy saving strategy during World War I and for the most part continues to now. There are some places that don't observe DST thus confusing things a little. For example I remember some time ago my brother-in-law lived in a state that didn't observe it and whenever he called at night it would always be after we had gone to bed because he would forget about the time difference.
Anyway, there's a movement under way to leave the clocks alone. In fact I think I heard or read somewhere that some senator has introduced a bill to change things to Standard Time and leave it at that.
I for one don't much care although I do feel bad for kids who have to get early school buses. Very often they're waiting in the dark. This can make for a dangerous situation.
Maybe we should leave the clocks the way they are going to be after tonight, i.e. DST. Then we could just call that Standard Time from now on.
All I know is whatever we do it will take me an inordinate length of time to adjust. I'll be tired one way or the other.