this post was submitted on 20 May 2025
1204 points (96.2% liked)

memes

15286 readers
4882 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to !politicalmemes@lemmy.world

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/AdsNo advertisements or spam. This is an instance rule and the only way to live.

A collection of some classic Lemmy memes for your enjoyment

Sister communities

founded 2 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] folekaule@lemmy.world 98 points 2 weeks ago (1 children)

At least our hours are the same length regardless of latitude now, so let's be grateful for that.

load more comments (1 replies)
[–] WanderingThoughts@europe.pub 89 points 2 weeks ago (1 children)

IIRC they counted the bones in their fingers using their thumb and that gives 12. The first sundial was around the equator and there is always light for half a day, so half a day becomes 12 hours.

To count large numbers often one hand was used to count using 5 fingers and the other to count the bones, so you get 5x12 for 60 minutes.

[–] WolfLink@sh.itjust.works 54 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

AIUI there was an aspect in the divisibility of the numbers being convenient.

12 is divisible by 2, 3, 4, and 6. 60 is divisible by 2, 3, 4, 5, 6, 10, 12, 15, 20, and 30.

10 is divisible by 2 and 5. 100 is divisible by 2, 4, 5, 10, 20, 25, and 50.

If you want to minimize dealing with fractions, 12 and 60 are far more convenient than 10 and 100.

[–] WhatsTheHoldup@lemmy.ml 9 points 2 weeks ago* (last edited 2 weeks ago) (11 children)

That's an interesting thought, but I believe it to simply be a coincidence.

The base 12 counting being based on counting the division of your fingers is historically verified, but if the division aspect was so compelling to them you'd expect it to carry forward into their writing system.

By the time you get cuneiform math though, they actually go back to base 10.

https://images.app.goo.gl/9GR6VEiT7GHYF3KaA

As you can see base 12 is not in the written system, or for written mathematics. It just was convenient for counting on their hands.

They used mixes of base 10/base 12 and base 60.

Base 10 would be used go determine the symbols for a specific "digit" in base 60.

So similar to how our 13 is 1 ten and 3 ones, their 13 was the symbol for 10 then 3 symbols for 1. 13 = 𒌋𒁹𒁹𒁹 But 73 would be written 𒁹 𒌋𒁹𒁹𒁹

Which would be interpreted as 1 sixty and 13 ones, or 60 + 13

load more comments (11 replies)
[–] Corn@lemmy.ml 64 points 2 weeks ago (8 children)
[–] edgemaster72@lemmy.world 49 points 2 weeks ago (5 children)
load more comments (5 replies)
[–] capuccino@lemmy.world 23 points 2 weeks ago (7 children)

Why the 'IIII' insted of 'IV'?

[–] DarrinBrunner@lemmy.world 32 points 2 weeks ago (1 children)

Prevents confusion between the four and the six: III, IV, V, VI, when the watch is not held perfectly vertically for viewing.

[–] Sylvartas@lemmy.dbzer0.com 13 points 2 weeks ago

Actually very common in watches with roman numbers iirc

load more comments (6 replies)
load more comments (6 replies)
[–] echodot@feddit.uk 61 points 2 weeks ago (8 children)

If the day started at 1:00 then by the second hour you would be at 2:00, even though only 1 hour has passed. Effectively the day starts at 0. In fact in 24-hour time that is how it's depicted, 00:00 with midday being depicted as 12:00, so it isn't confusing

load more comments (8 replies)
[–] lobut@lemmy.ca 57 points 2 weeks ago (3 children)

I only recently learned the etymology of the word: "second"

Its name comes from being the "second" division of the hour, with the minute being the first.

[–] x00z@lemmy.world 23 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

I'll see you in 5 firsts, 2 seconds and 7 thirds.

load more comments (1 replies)
load more comments (2 replies)
[–] Honytawk@lemmy.zip 33 points 2 weeks ago* (last edited 2 weeks ago) (9 children)

Days start at 0h, not 12h

It can't start at 12 hours if there are 24 segments.

And keep your letters out of it too.

[–] tauren@lemm.ee 24 points 2 weeks ago (4 children)

Days start at 0h, not 12h

Show me where is the zero here?

[–] mumblerfish@lemmy.world 12 points 2 weeks ago (7 children)

The AM/PM bullshit:

AM: 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

Then the same for PM. Who counts like that? Whats after 12? 1! What?

load more comments (7 replies)
load more comments (7 replies)
[–] WhatsTheHoldup@lemmy.ml 31 points 2 weeks ago (2 children)

Don't listen to OP's bullshit.

They work for big clock. They're trying to convince you 12 hour clock is useless so they can sell you double the clock.

load more comments (2 replies)
[–] Lucien@mander.xyz 28 points 2 weeks ago (5 children)

We have Babylon to thank for this

[–] massive_bereavement@fedia.io 32 points 2 weeks ago (1 children)

Well, then I can't complain, lovely sci-fi production.

[–] KingJalopy@lemm.ee 13 points 2 weeks ago (9 children)

Yeah but no matter how hard I look I can't find the first 4

load more comments (9 replies)
[–] UnderpantsWeevil@lemmy.world 10 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Our mistake was not embracing base-12 time, it was failing to embrace a base-12 counting system.

load more comments (1 replies)
load more comments (3 replies)
[–] MilitantAtheist@lemmy.world 27 points 2 weeks ago (20 children)

Clocks should use 24h format. AM/PM is completely useless.

load more comments (20 replies)
[–] ssfckdt@lemmy.blahaj.zone 27 points 2 weeks ago (3 children)

Somebody never had a clock with roman numerals and it shows

I remember getting into an argument with a grade school teacher over IIII because most such clocks put that for 4 instead of IV because of some fuckin reason

[–] Opisek@lemmy.world 15 points 2 weeks ago* (last edited 2 weeks ago) (2 children)

I despise these so so much. IIII was historically NEVER correct. Some doofus decided to put that on a clock because it looks more symmetrical with the VIII on the other side. Terrible reasoning.

load more comments (2 replies)
[–] naticus@lemmy.world 9 points 2 weeks ago (4 children)

Weird, I've seen many analog clocks with Roman numerals but always IV for 4.

[–] topherclay@lemmy.world 20 points 2 weeks ago (1 children)

It's actually called the "clockmakers four" or "watchmakers four." it's a thing.

load more comments (1 replies)
load more comments (3 replies)
load more comments (1 replies)
[–] ch00f@lemmy.world 25 points 2 weeks ago (3 children)

Sundials.

Now if you want to get really pissed, the magnetic North Pole is actually the South Pole of the Earth’s magnetic field. We call it the North Pole because the north side of a magnet points to it.

load more comments (3 replies)
[–] JordanZ@lemmy.world 24 points 2 weeks ago (3 children)

Somebody gave me this clock…I just need the time.

[–] TimewornTraveler@lemm.ee 9 points 2 weeks ago
load more comments (2 replies)
[–] LanguageIsCool@lemmy.world 19 points 2 weeks ago

The 6 means 30, both of which also mean 1/2

[–] teslasaur@lemmy.world 18 points 2 weeks ago* (last edited 2 weeks ago) (2 children)

It's the same logic that was used by ancient astronomers to arrive at 360 degrees for a full revolution.

The math is easier if you have to do it by hand.

[–] nialv7@lemmy.world 11 points 2 weeks ago (7 children)
load more comments (7 replies)
load more comments (1 replies)
[–] StThicket@reddthat.com 18 points 2 weeks ago (6 children)

When I become dictator of the world, this will be the new time unit: https://metric-time.com/

The year will also have 13 months: https://en.m.wikipedia.org/wiki/International_Fixed_Calendar

The year will be 12025: https://en.m.wikipedia.org/wiki/Holocene_calendar

Because these things just make more sense. You will thank me after a few generations, because habits are hard to change.

load more comments (6 replies)
[–] Shawdow194@fedia.io 16 points 2 weeks ago (18 children)

Also why clockwise?

Earth rotates and orbits counter clockwise. It just seems more right

[–] Skua@kbin.earth 84 points 2 weeks ago (1 children)

To be fair whichever direction they made it go would be clockwise

[–] Devadander@lemmy.world 21 points 2 weeks ago

True, but also it’s because of sundials

[–] mittyta@lemmy.world 75 points 2 weeks ago

Because Sundials rotate clockwise ( in north hemisphere )

[–] bdonvr@thelemmy.club 11 points 2 weeks ago* (last edited 2 weeks ago)

Earth rotates and orbits counter clockwise.

No it doesn't. It depends on the human perception of "up" and "down" which are completely arbitrary. We by convention see the North Pole as the "top" of the world but it could as easily be seen as Antarctica.

load more comments (15 replies)
[–] ryedaft@sh.itjust.works 13 points 2 weeks ago

If you want to be mad about time then I'd like to introduce you to a little thing I like to call the Gregorian calendar.

[–] Nougat@fedia.io 10 points 2 weeks ago

I'll be there at H:00.

[–] PieMePlenty@lemmy.world 9 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Hour hand -> hour = n
Minute hand -> minute = n * 5
It makes sense, there's just an algorithm attached to each pointer.

Hour -> 3 = 3
Minute -> 3 = 3 * 5 = 15

load more comments (1 replies)
[–] lmmarsano@lemmynsfw.com 9 points 2 weeks ago (2 children)

Gift from ancient Mesopotamia. Mesopotamians love 12 & base 60. They also liked 7. Those numbers recur in their mythology.

Americans have a weird fixation with 💯. Where Americans might use percentages, I've seen Japanese plot values in [0, 1] (ie, pure proportions).

load more comments (2 replies)
load more comments
view more: next ›