Both 12 and 60 are superior highly composite numbers^[1] which makes mental math easy. 60 in particular is a very nice number because it has 12 divisors and is the smallest number divisible by all the numbers 1 through 6.
Nah. Just start counting on your fingers. 123 on the index, 456 on the middle, 789 on the ring, and the rest on your pinkie. Its based on the segments of each finger, and it's how Mayans used to count.
The proof that it is probably not possible ever is that metric time was already adopted during the French Revolution, during the period when they were metricising everything else, and even they decided that it wasn't worthwhile.
Neat but holy good fucking god the amount of programming it would take if it was ever decided to change this going forward, not to mention how historical times would be referenced. Datetime programming is already such a nightmare.
Lol. Seriously though, for something like this these days, it will be interesting to see what happens given we will have to face the year 2038 problem. This kind of thing was still doable for the 2000 switch because of the relatively small number of devices/softwares, but because of the number of devices and softwares now, let alone in 2038, I really have no idea how it's going to be managed.
The advantage of 12 and 60 is that they're extremely easy to divide into smaller chunks. 12 can be divided into halves, thirds, and fourths easily. 60 can be divided into halves, thirds, fourths, and fifths. So ya, 10 isn't a great unit for time.
I don't understand how its any easier than using 100 and dividing...
1/2 an hour is 30 min
1/2 an hour if metric used 100 is 50 min
1/4 an hour is 15 min
1/4 an hour metric is 25 min
Any lower than that and they both get tricky..
1/8 an hour is 7.5 min
1/8 an hour metric is 12.5 min
Getting used to metric time would be an impossible thing to implement worldwide I reckon, but I struggle to understand how its any less simple than the 60 min hour we have and the 24 hour day...
I loved the idea behind Swatch's .beats. A "beat" was slightly short of 1.5 minutes, so totally usable in everyday life. If you need more precision, decimals - as @sawdustprophet@midwest.social suggested - are allowed.
However, one big issue of it is that it is based on Biel, Switzerland local time and the same for everyone around the world. Might not be that big of a problem for Europeans, but while e.g. @000 is midnight in Biel, it's early morning in Australia, and afternoon/evening in the US.
And the second, bigger issue becomes obvious when you start looking at the days. E.g. people in the US would start work @708 on a Tuesday and finish @042 on Wednesday. Good luck scheduling your meetings like this.
Maybe I'm not understanding this right.
A quick google search shows that there is 86 400 seconds in a day. With metric time, an hour is 10 000 seconds. That means that a day would be 8.6 hours, but on this clock it's 10? How does that work?
The modern SI system defines the second as the base unit of time, and forms multiples and submultiples with metric prefixes such as kiloseconds and milliseconds.
Edit: Attention that this is the SI second, not a decimal second
Wikipedia on Decimal Time:
This term is often used specifically to refer to the French Republican calendar time system used in France from 1794 to 1800, during the French Revolution, which divided the day into 10 decimal hours, each decimal hour into 100 decimal minutes and each decimal minute into 100 decimal seconds
A friend once mused that “wearing a watch is like being handcuffed to time.” It’s one of the reasons I stopped being a watch guy (but more because I checked it compulsively but didn’t know what time it was when a coworker saw me check and ask the time).
Anyway, I prefer to try not to keep track of the time unless I need to be somewhere.
It's close enough that counting Mississippis is still roughly accurate.
(for non-US people, we sometimes estimate seconds by counting 1 Mississippi, 2 Mississippi, 3 Mississippi... just because it's a long word that takes about the right amount of time to say)
In geometry, 15, 30, 45, 60, 90, 120, and 180 degrees are all important, commonly occurring angles. They can be represented as 1/24, 1/12, 1/8, 1/6, 1/4, 1/3, and 1/2 of a circle. Trying to represent these angles on a 10-degree circle, most would have infinitely repeating decimals, which would make math involving them extraordinarily ugly and complicated. You can't represent the angles of an equilateral triangle without repeating decimals. (1/6 of a circle, or 1.667 "degrees") You can't even represent the angles of a square without a fractional part. (1/4 of a circle, or 2.5 "degrees")
Dividing the circle into 360 degrees gives us numbers that are simpler and cleaner to use in base-10 mathematics. The 360-degree circle is a layer of abstraction for eliminating repeating decimals when referring to these common angles. Decimal is such a pain in the ass in geometry that stacking a sexagesimal layer between the unit circle and the number system was the most feasible way to do it.
A base-12 number system would not need such an abstraction. On a 12-degree circle, these common angles would be 0.5, 1, 1.5, 2, 3, 4, and 6 degrees. A 24-degree circle (12-degree half-circle) would allow us to represent each of these with no radix point (the "decimal point" in a non-decimal number system)
Basically, if we had evolved with 6 fingers on each hand instead of 5, mathematics would be far more elegant. We would have needed to memorize a completely different multiplication table with two additional digits. On this table, 3 * 4 = "10" instead of 12, 6 * 2 ="10" instead of 12, and 2 * 3 * 4 * 6 = "100" instead of 144. The duodecimal expansions of π, e, √2, and other irrational constants would be different, but the concepts would be consistent.
An alien who grew up doing base-12 math would look at our base-10 system like we would look at the poor bastards who used a base-7 number system.