- Why do we need to “save” daylight hours in the summer? Daylight saving time in the U.S. started as an energy conservation trick during World War I and became a national standard in the ‘60s.
- Isn’t it “daylight savings time,” not “daylight saving time”? No, it’s definitely called “daylight saving time.” Not plural.
- Does it actually lead to energy savings? According to science writer Joseph Stromberg, the presumed electricity conservation from the time change is unclear or nonexistent.
- Why doesn’t Arizona change its clocks? Arizona has a simple way to deal with daylight saving time: Most of the state ignores it. Hawaii also doesn’t observe DST.
- Didn’t Florida pass a bill getting rid of daylight saving time? Earlier this year, Florida approved the delightfully named Sunshine Protection Act, which seeks to permanently leave Florida in daylight saving time.
- What would happen if daylight saving time were abolished? Or if it were extended forever? The length of light we experience each day wouldn’t actually change; that’s determined by the tilt of Earth’s axis. But we would experience it in times more accommodating for our modern world.
- Is daylight saving time dangerous? A bit. When we shift clocks forward one hour in the spring, many of us will lose that hour of sleep.
- How can we abolish daylight saving time, or extend it year-round? That’s easy! Well, not really: All it would take is an act of Congress.
Daylight saving time ends Sunday: 8 things to know about “falling back” - Vox