“Republicans are once again attempting to make Daylight Saving Time permanent, with President Donald Trump promising to lead the push to end the longstanding American practice of switching clocks twice a year.”

  • bss03@infosec.pub
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    2 days ago

    full darkness or full daylight how the fuck would you know

    Firstly, it’s not like that all year around, and your internal clock will stay synced to solar time with some minor disruption.

    Secondly, even in full daylight, the size of shadows can be sensed, and at such low angles even a small change in degrees results in large length differences. Full darkness is harder to find noon in, but full darkness is around for remarkably few days even at the poles. More frequently you can locate the peak of a “pre-dawn glow” even tho the sun itself is never visible over even the flattest of horizons.

    Places farther east in a time zone reach solar noon earlier and places farther west in a time zone reach solar noon later.

    It can be 20 to 40 minutes different

    Yeah, my timezone is about 15 minutes off of my solar noon. I see timezones as an acceptable compromise, though I’d prefer we did without them. I particularly dislike timezones that are so wide that in some parts of the zone are more than an hour off solar noon, and if there was a proposal to fix that I’d support it.

    It does not matter what time it is or where the sun is in the sky

    It does. There are various bodily rhythms and light sensitivities that for most people there’s a benefit to centering the time used on the solar day.