When I was a kid, I was such a nerd, that I invented my own decimal timekeeping system.
Even wrote a little macOS menubar clock for it — I was dead-serious.
Edit: omg the website still works, even though I never put any real content there …
Edit 2: Found this old explanation I apparently put together in July 2010, according to my image archive:
Ehhhh, no. There are very important reasons we divide the time this way. 24 is a highly composite number (a number with more divisors than all numbers preceding it; like an opposite of a prime number). This allows us to easily divide the day into halves, thirds, quarters and sixths. So is 60, with even more divisors.
My guess is the same thing goes for the switch from Roman to Julian calendar (ten to twelve months in a year).
Interestingly, the same goes for 360 degrees in a full angle.
Thank you :) I love how lemmy has all the smart people.
The history of the calendar in Roman times is actually an entire topic to itself.
The pre-Julian calendar required fine tuning every year in winter to keep the rest of the months aligned with the seasons.
Technically not a difficult job to keep the calendar running smoothly and consistently, but the person in charge of the calendar in Rome was a politician, so they would play political games with the length of the year.
Caesar wanted a calendar that would run on auto-pilot to strip power away from those politicians.
By sheer coincidence when Caesar made his reform, during the the changeover of calendars while he was in charge, he got to rule over a 400+ day long year.
Ahhh. This is it. This is the good stuff. Lemmy is really coming along I missed this.
So make it 24 then. What’s this 12shit?
The History of the clock is actually pretty interesting https://www.britannica.com/topic/12-hour-clock
The inventor of the imperial units used by the US, this one really sniffed glue.
The decimal time was introduced at the same time than the rest of the units.
In this system days are 10 hours long, hours are 100 minutes and minutes 10 seconds.
Unfortunately the system did not stick at the time and we reverted to the old system.
The reason for 12-hour clocks is most cultures worldwide have variable length hours of over a year. For Western times this comes from Greeks who had 12 day and 12 night hours. Early water clocks in antiquity would attempt to make that adjustment automatically.
It came from the Sumerians, not the Greeks.
The Greeks specifically build water clocks with variable length days.
The joys of a base-60 number system
Chad American broken clocks: right twice per day Virgin Bri‘ish broken clocks: only right once per day
pwnd
A slow clock might not be right in your entire lifetime.
Oh and when the minute hand is 3/4s of the way to the 12 it’s quarter too…5.
12 1 2 3 4 5 6 7 8 9 10 11
Wait until you hear about traditional Japanese timekeeping, where the hours had different lengths throughout the year, depending on daylight: https://youtu.be/1BJmnEa6YGE
Here is an alternative Piped link(s): https://piped.video/1BJmnEa6YGE
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source, check me out at GitHub.
The Greeks also had variable length hours, and early water clocks attempted to adjust automatically over the year.
Man I just want everyone to use UTC
Time zones are kind of useful though.
We should just use second notation for everything.
I’ll be there in 5 min? I’ll be there in 2 or 3 hundo!
See you tommorow? See you in in 86K!
Next week? About half a Megasec!
Doesn’t Megasecond sound better than Fortnite?
There is a fun fun sci-fi book called “Deepness in the Sky” by Vernor Vinge. The Humans use epoch time with si prefixed Seconds for time,
That is a great book. Did you read the sequels?
Did you say sequels??? I’ve read A Fire Upon the Deep and a Deepness in the Sky. There are others???
Children of the Sky too.
I’ll have to check that out. I’ve enjoyed some of Vinge’s other work as well. The Peace War, Marooned in Realtime, and Rainbow’s End were all pretty great reads as I recall (been awhile).
Why hasn’t the Metric world found a better way? I want a clock based around multiples of 10, dammit!
One benefit of base 12 and base 60 over base 10 for everyday use with things like time is simple factorization. You can divide 12 hours evenly into halves, thirds, quarters, and sixths, and 60 minutes evenly into halves, thirds, quarters, fifths, sixths, tenths, etc. With base 10, you’ve just got halves and fifths.
Yeah, I know all about that, but I don’t think we’ll convince people to change everything to base 12, so let’s go with a base 10 clock.
I see what you did there and it’s very funny.
I didn’t put in a secret punchline. It’s a genuine thought. What do you think I did?
Well, I thought I was replying to squirrel, but they say we’ll never get everyone to use base 12 systems so we had better just go to base 10…
When the entire sae/imperial/whatever is either base 12 or divisible by it already.
There’s already a perfectly good base 12 system in everyday use, but we’ll never get anyone to accept that so we gotta accept inferior base 10. See the joke?
Ah, so you just replied to the wrong guy? Ok then.
Yeah, I understood that joke.
i’m reading here on .ml and it looks like my reply was to squirrel and then you replied to me. what are you seeing?
