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Study suggests most Americans would be healthier without daylight saving time (2025)

med.stanford.edu

41–50 of 159 posts

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#41

Between this and the "Sunset time and the economic effects of social jetlag: evidence from US time zone borders" paper [0], it seems like the issue is the size of the discontinuous jump in time, not necessarily that we change the clocks. So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter? [0] https://pubmed.ncbi.nlm.nih.gov/31030116/

If you present this as the alternative, I think there's a chance people might actually just get rid of it :)

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#42

Earlier quoted context omitted.

Why should the clock be set to those arbitrary points? If you want sun in the morning, wake up later, it you want sun in the evening, wake up earlier. If your issue is when work is scheduled, well businesses set their own hours, not the government.

Businesses don’t care how much sun you get

The government doesn't set the opening hours of businesses though either.

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#43

Between this and the "Sunset time and the economic effects of social jetlag: evidence from US time zone borders" paper [0], it seems like the issue is the size of the discontinuous jump in time, not necessarily that we change the clocks. So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter? [0] https://pubmed.ncbi.nlm.nih.gov/31030116/

> So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter?

Very easy answer: Because it's already painful twice a year, and that would be making it even worse.

That answer is similar to the one for questions like "why do we have wide time zones that are somewhat inaccurate, rather than setting every clock based on the exact position of that clock?".

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#44

It was tried 52 years ago, and no one actually liked it, so we went back to DST again: https://en.wikipedia.org/wiki/Permanent_time_observation_in_... Possibly another example of the old Chesterton's Fence.

Except it's not like Chesterton's fence, it was created at the edge of living memory for known reasons. If anything it's an example of the opposite effect, something like Chesterton's field, do we really need to build a wall here, it's been a field for a damn long time...

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#45

Do the anti-DST people understand what they're advocating for? Have a look at the sunset/sunrise graph for northern parts of the US https://www.timeanddate.com/sun/usa/seattle In Seattle, without DST, sunrise happens at 4:11am. Because of DST, it's pushed back an hour later to a more reasonable 5:11am. I am not awake at 4am, I have no use for sunlight at 4am, and I don't want the sun appearing that early. That hour o…

You realize that you can change your own sleep patterns seasonally if you want to? Heck, you could do that even gradually instead of those abrupt 1 hour changes. That is your choice, we don't need to fiddle with clocks for the whole society for that.

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#46

Between this and the "Sunset time and the economic effects of social jetlag: evidence from US time zone borders" paper [0], it seems like the issue is the size of the discontinuous jump in time, not necessarily that we change the clocks. So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter? [0] https://pubmed.ncbi.nlm.nih.gov/31030116/

> So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter? Very easy answer: Because it's already painful twice a year, and that would be making it even worse . That answer is similar to the one for questions like "why do we have wide time zones that are somewhat inaccurate, rather than setting every clock based on the exact position of that clock?".

I’d be okay with every day having a different # of seconds. That way we slowly adjust with no discontinuity, but the nominal start time of school/work stays the same.

While this feels would be a disaster for other reasons like: “How many seconds are in an hour?” -> “Depends, no one knows.” … that’s already the case with our existing leap seconds.

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#48

Earlier quoted context omitted.

This just seems like a backwards justification. There is nothing wrong with a 9am sunrise or a 4:11am sunrise. People in Anchorage deal with both just fine. > I am not awake at 4am, I have no use for sunlight at 4am Most people aren’t awake at 5am either. Your use for the sun when there is an excess of it that goes well past your bedtime if you get up at 5am is irrelevant.

My work starts at 9am, therefore I wake up around 7am. My work start time does not adjust based on the seasons. Any sun before 7am is wasted for me. Under DST, at summer solstice, the sun rises around 5am, giving me 2 hours of wasted sunlight. Without DST, at summer solstice, the sun rises around 4am, giving me 3 hours of wasted sunlight. I enjoy having additional hours of sunlight when I am awake, so for me I actual…

You can still wake up earlier and enjoy your sunrise even if your working hours are fixed.

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#49

Do the anti-DST people understand what they're advocating for? Have a look at the sunset/sunrise graph for northern parts of the US https://www.timeanddate.com/sun/usa/seattle In Seattle, without DST, sunrise happens at 4:11am. Because of DST, it's pushed back an hour later to a more reasonable 5:11am. I am not awake at 4am, I have no use for sunlight at 4am, and I don't want the sun appearing that early. That hour o…

This just seems like a backwards justification. There is nothing wrong with a 9am sunrise or a 4:11am sunrise. People in Anchorage deal with both just fine. > I am not awake at 4am, I have no use for sunlight at 4am Most people aren’t awake at 5am either. Your use for the sun when there is an excess of it that goes well past your bedtime if you get up at 5am is irrelevant.

I can see the DST argument for people where the shift kinda sorta works out, but many places (like Anchorage!) it's completely unnecessary. I live in Sweden and it's just the twice annually "ah shit the clock moved overnight."

Re: Study suggests most Americans would be healthier without daylight saving time (2025)

#50

Earlier quoted context omitted.

> So why not "smear" the DST ST transitions by having four half hour transitions, once each quarter? Very easy answer: Because it's already painful twice a year, and that would be making it even worse . That answer is similar to the one for questions like "why do we have wide time zones that are somewhat inaccurate, rather than setting every clock based on the exact position of that clock?".

I’d be okay with every day having a different # of seconds. That way we slowly adjust with no discontinuity, but the nominal start time of school/work stays the same. While this feels would be a disaster for other reasons like: “How many seconds are in an hour?” -> “Depends, no one knows.” … that’s already the case with our existing leap seconds.

> that’s already the case with our existing leap seconds.

Which we are also in the process of getting rid of.

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