It also resets the clock, so exercise is part of his formula for dealing with jet lag, or even a time change of one hour.
So Saturday afternoon, he says, go out and get some exercise.
"A brisk walk will release serotonin and other types of neurotransmitters that will phase-advance the clock," he says.
You might also pick up a melatonin pill, which functions similar to serotonin, from your local drugstore and "pop that right after your walk."
Finally, when you get up Sunday morning, expose yourself to a reasonably bright light for an hour or two.
That formula works well for jet lag, especially if the time change is several hours, but is it really necessary for daylight-saving time?"
Glass says most people probably don't have much of a problem with a one hour change, but there's a bit of tantalizing evidence that suggests some of us do.
He studied actuarial tables from the insurance industry and came up with a bit of a surprise.
"If you look at accident rates, one of the highest days for an increase in accidents on the highways or in the workplace or whatever occurs on Monday after the Sunday phase advance," he says.
So he offers one other bit of advice:
Be a little more careful driving to work on Monday.