Daylight saving 2025: Why we still ‘spring forward’ despite voters’ wishes

Just when you finally got all your clocks changed and your body and attitude adjusted, it’s time to take another leap in time — ahead to daylight saving time.

Daylight saving begins at 2 a.m. Sunday. Californians and most other Americans will set their clocks ahead an hour, losing an hour of sleep and making the mornings darker and the daylight later — until Nov. 3.

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Most Californians relish the after-work daylight, as evidenced by a successful 2018 state ballot measure supporting but not mandating permanent daylight saving time. 

But while many enjoy more daylight into their evenings, early risers who go for walks or runs or make predawn drives to work may dread the morning darkness. Critics call the shift outdated and unneeded, and medical researchers warn that it can be disruptive to health and sleep patterns.

For now, though, the seasonal switch between daylight saving time and standard time is here to stay. Here are some fast facts about daylight saving time:

When and why did daylight saving time start?

Tales of the outdoor industry or farmers creating daylight saving time to sell more tents or get more time in the fields aren’t accurate. Congress gave birth to daylight saving time in 1918 to help save energy costs during World War I, according to the Department of Defense. 

Daylight saving was repealed when the war ended, then reinstated by Congress in 1942 during World War II. The law was once again repealed in 1945 at the war’s end, and individual states were allowed to establish their own standard time.

That led to chaos and confusion for the next two decades, particularly in industries like transportation and broadcasting. Then in 1966, Congress passed the Uniform Time Act, which established a national standard time that permanently superseded local times. It established daylight saving time from the last Sunday in April to the last Sunday in October.

The law has been tweaked a few times since, including the dates when we spring forward and fall back.

Does every state have daylight saving time?

Only two western states — Hawaii and Arizona — and most American territories, including Guam and Puerto Rico, opt out of daylight saving and operate on standard time year-round. The Navajo Nation in northeastern Arizona also makes the time switch.

Click here to read the full article in the SF Chronicle

Comments

  1. Really??? says

    The answer that will satisfy none of the pro and con sides is simple.

    Shorten Daylight Savings by one month on each side (spring and fall).

    The bio rhythm will not be upset too much and the long summer days of BBQ’s will survive.

    And you thought it would be difficult!

    Chuckle

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