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submitted 2 months ago by ByteOnBikes@slrpnk.net to c/mathmemes
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[-] cmhe@lemmy.world 8 points 2 months ago

The U.S. 12h clock is stupid: 12PM + 1h = 1PM

If you don't use a 24h clock at least do it like the Japanese, who also use the 12h clock and have: 0:00 PM + 1h = 1:00 PM

[-] Crozekiel@lemmy.zip 5 points 2 months ago

that just moves the weird math, because 11:00 + 1h = 00:00... The fact that clocks are a circle means there is some weird math like this happening somewhere no matter the system.

[-] cmhe@lemmy.world 6 points 2 months ago* (last edited 2 months ago)

Not really 11:00 AM +1h becomes 00:00 PM, and vice versa. PM and AM are different prefixes/systems/units. Much simpler to understand IMO. 12:00 AM and 12:00 PM would no longer exist, you just convert them from PM to AM or back when you reach them and set the numbers to 00 again.

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[-] philluminati@lemmy.ml 7 points 2 months ago

The person who made the clock copied it from a sundial. You can’t say it’s not logical because that’s how physics works.

[-] Hupf@feddit.org 7 points 2 months ago
[-] ByteOnBikes@slrpnk.net 5 points 2 months ago

This joke has lived in my head quietly for at least a decade.

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[-] TowardsTheFuture@lemmy.zip 6 points 2 months ago

86,400 is not a perfect cube (or any other power) so unless you change the number of seconds in a day you’re not getting a way to perfectly represent 3 different sized time measurements in the same circle without something like 6=30m/30s

We could just change time… again… to make seconds slightly longer and have there be 85,184 seconds in a day. And then 44 seconds in a minute and 44 minutes in an hour and 44 hours in a day…. But 44 is a lot of numbers to put around a clock just because you’re too lazy to multiply by 2 or 5, shit 2nd graders can do so…. Nah.

[-] Geobloke@lemm.ee 6 points 2 months ago

So ancient Mesopotamians used to count on their hands slightly different. They wouldn't count their thumbs, instead they would count each knuckle with their thumb so, 3 knuckles per finger and 4 fingers each hand

[-] fakeman_pretendname@feddit.uk 4 points 2 months ago

You can do this too - you have the same hands :)

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[-] Matombo@feddit.org 5 points 2 months ago

fun fact during the si process there was also a proposal to make a minute 100 seconds and an hour 100 minute and a day 10 hours (and adjust the second length so that it still syncs up with the sun ofc) but it never got implemented, probably because auf big clock-manufecturing puts on alu hat

[-] gandalf_der_12te 4 points 2 months ago

I have come to conclude that probably, a terrible amount of these inconsistencies is to make it artificially hard, to "keep out the lower classes" from thinking, or sth. Similar to how the white population in the US made living in suburbs artificially difficult (car dependency, HOAs, ...) to keep the "poor" (a.k.a. black) people out. it's thinly veiled racism.

[-] qarbone@lemmy.world 8 points 2 months ago

Or maybe it's just a way to overlay multiple levels of information over the same circle.

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[-] RejZoR@lemmy.ml 4 points 2 months ago

There are watches that are called "slow watch" which has a single hand and a dial that goes from 0 to 24. They kinda make more sense than regular watches.

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[-] BeN9o@lemmy.world 4 points 2 months ago
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this post was submitted on 23 Mar 2025
1142 points (100.0% liked)

Math Memes

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