• SaltyIceteaMaker@lemmy.ml
    link
    fedilink
    arrow-up
    6
    ·
    edit-2
    1 hour ago

    24 hours cause Egyptians split their sun dials and star decans into 12 parts each (probably cause 12 is divisible by 2, 3, 4, and 6) which the greeks later turned into equal length hours (before the length would change over the year)

    60 minutes due to Babylonian base-60 math

    12 hour format is just tradition at this point, but derived from the sun dials which only worked at day, so half the time, and the star decans which only worked at night, so the other half.

    pretty much every country except the US uses the 24h format on digitial clocks now

    also the dude in the meme was kinda right: the day will be divided into 12 segments. and the night will too. at least originally

    • ethaver@kbin.earth
      link
      fedilink
      arrow-up
      1
      ·
      41 minutes ago

      It’s called a “highly composite number!” I read up on a lot of this stuff while learning about numerology and other esoteric spiritual traditions!

  • Zamboni_Driver@lemmy.ca
    link
    fedilink
    arrow-up
    34
    ·
    10 hours ago

    24 hour analogue clocks exist. I have a 24 hour watch which only revolves once per 24 hours. It’s a disadvantage though.

    The reason why clocks and watches display 12 hours at a time is so that they have space to show finer resolution of time. If you try to cram 24 hours onto a clock, it’s not easy to tell if it’s 12:20 or 12:30 at a quick glance.

    Most people are not too stupid to be aware of if they are in the first 12 hours or second 12 hours of a day, so they benefit from a watch with 12 hour timescale and finer resolution so that they can more easily see exactly what time it is.

    And for all the dummies posting about 12h vs 24h clocks. In the sense of saying that it’s 1pm vs 13:00. That’s not what this meme is even describing. This is about the physical layout of a clock or watch face.

    • riot@fedia.io
      link
      fedilink
      arrow-up
      6
      ·
      9 hours ago

      I can’t believe this is the first I’m hearing of 24-hour analogue clocks! That’s so cool. But yeah, I see your point about it now allowing for very much precision at a glance.

  • altphoto@lemmy.today
    link
    fedilink
    arrow-up
    13
    arrow-down
    1
    ·
    8 hours ago

    Alright, I’m calling a 4.1666666666666666666666666666 metric hour meeting to discuss this!

    The meeting might run to a full 5 metric hours.

    • bountygiver [any]@lemmy.ml
      link
      fedilink
      English
      arrow-up
      5
      ·
      edit-2
      6 hours ago

      there’s 86400 seconds in a day. If we use a new unit that is slightly shorter than a second as a metric second, we can do 100000 metric seconds a day, with 100 metric seconds per metric minutes, and 100 metric minutes per metric hour, and each day having 10 metric hours.

      Your 1 hour activity now takes 0.5 metric hours (it might be 20% longer, but that’s arbitrary anyways, we rounded them to the closest hour anyways)

      We are only used to the current system because we have been using it.

  • s@piefed.world
    link
    fedilink
    English
    arrow-up
    18
    ·
    10 hours ago

    Keep it simple and just measure in terms of seconds since the Big Bang. The current time is 435,884,579,968,052,736 seconds, easy peasy

  • IWW4@lemmy.zip
    link
    fedilink
    arrow-up
    64
    arrow-down
    2
    ·
    13 hours ago

    It is wild how people refuse to use the 24 hour clock. It is so logical and easy. kind of like the metric system……

    • AA5B@lemmy.world
      link
      fedilink
      arrow-up
      7
      arrow-down
      6
      ·
      12 hours ago

      It only solves a small part of the issue at the cost of less convenience and consistency. Propose a “metric” time that solves more of this issue problem and I’m all for it

      • groet@infosec.pub
        link
        fedilink
        arrow-up
        10
        arrow-down
        2
        ·
        11 hours ago

        less convenience and consistency

        What? … seriously, which convenience and consistency are you talking about.

        24h only has one “inconsistency”, going from 23:59 to 0:00. How is that less consistent than 12am being after 11:59pm and 12pm being after 11:59am. Solves all parts of the issue except for one. Which is a lot better than the 12h system.

        • 8uurg@lemmy.world
          link
          fedilink
          arrow-up
          3
          ·
          5 hours ago

          This has messed with me for the longest time. 24h just wraps around at 24, simple modulo 24 arithmetic.

          12h? The hour and am / pm wrap around independently, and hence I am always confused whether 12pm is supposed to be midnight or noon. Zero based would have made more sense (with x pm being x hours after noon…)

        • BakerBagel@midwest.social
          link
          fedilink
          arrow-up
          6
          arrow-down
          1
          ·
          11 hours ago

          Why are the 60 minutes in an hour but 24 hours in a day? What functional difference is there between tne 12 and 24 hour clock? Are you showing up to your friend’s dinner party at 6am because you weren’t sure what time they wanted to start dinner? Are you unsure if your picnic is supposed to be right after midday or the middle of the night? Maybe your friend wanted to meet up for coffee and a bagel when you normally go to bed instead of right before you head off for lunch

          • groet@infosec.pub
            link
            fedilink
            arrow-up
            3
            ·
            7 hours ago

            I asked why the am/pm system is apparently more convenient and consistent than the 24h system. I didn’t ask about 24h in a day and 60min in an hour.

            What functional difference is there between tne 12 and 24 hour clock?

            You need 2 numbers and 2 letters to accurately specify time in the 12h clock instead of just 2 numbers. Seems convenient to me.

            • BakerBagel@midwest.social
              link
              fedilink
              arrow-up
              1
              arrow-down
              1
              ·
              6 hours ago

              You don’t need the am or pm 90% of the time because obviously a lunch date is happening sometime around noon, not midnight. A lunar eclipse or meteor shower isn’t visible while the sun is up, or a midnight snack isn’t happening in the middle of the day. Obviously if you are talking trains and flights, you need AM and PM. But people who are used to 12 hour time don’t want to figure out when 16:00 is, so they don’t.

              • AlexanderTheDead@lemmy.world
                link
                fedilink
                arrow-up
                2
                ·
                4 hours ago

                If you know basic addition and you know how a 12 hour clock functions, then you know how a 24 hour clock functions. If you can’t figure it out, that doesn’t make it inconvenient, it just makes you incredibly stupid.

  • Admetus@sopuli.xyz
    link
    fedilink
    arrow-up
    91
    arrow-down
    3
    ·
    14 hours ago

    I get the joke, but the sundials of ancient civilisations precluded clocks.

    • hansolo@lemmy.today
      link
      fedilink
      arrow-up
      3
      ·
      11 hours ago

      I never confirmed this, but I noticed that in parts of West Africa, people wouldn’t say “afternoon” until after 1:00pm. Since greetings were important, I started noticing it more and more when peoe would say “good morning” during lunch at 12:30pm. As if the 12 noon hour is still part of the time segment.

  • lime!@feddit.nu
    link
    fedilink
    English
    arrow-up
    14
    arrow-down
    2
    ·
    edit-2
    14 hours ago

    maybe this is because i grew up in a house that had a clock with hands but no numbers, but wth do you mean “the 6 means 30”.

    analogue clocks consists of two progress bars. the numbers are just for convenience.

  • BenevolentOne@infosec.pub
    link
    fedilink
    arrow-up
    7
    arrow-down
    4
    ·
    12 hours ago

    My pet theory is (circa 10000 BCE) that ‘houses’ and ‘hours’ are related words, the 12 hour clock matched the zodiac, each hour/house was 1 Assyrian ‘watch’ and they had no trouble day or night (constellations at night, sundial during the day), they were easy to build, easy to communicate, easy to understand and efficient.

    Then the Egyptians stole the technology (Circa 6000BCE) said ‘12 hours in a day? I got you bro’, fucked it up and it all went downhill from there.

    Feel free to quote me in your prize winning scientific paper.

    • Hoimo@ani.social
      link
      fedilink
      arrow-up
      2
      ·
      8 hours ago

      How important is it to your theory that “hour” is related to “house” in… ancient Assyrian language? Because they’re completely unrelated in English, “house” coming from Germanic hus and “hour” coming from French ore. If we look at ancient Greek, the two are hoora for “hour” and oikos for “house”. I think English post-vowel shift has to be the first language where those two even sound similar.

      • BenevolentOne@infosec.pub
        link
        fedilink
        arrow-up
        1
        ·
        6 hours ago

        Not central, just suspicious, but… this is ‘house’ as in astrological house as in the first part of the word ‘horoscope’, not house like a house you live in.

        My background in linguistics consists of a couple chompsky soft-science books and a love of tolkien, but if you actually know something and wanna chat I’d honestly love to dig in on this seriously. DM me.