I love how the example is super confusing. You sleep 3.33… metric hours. You fall asleep 9:50 metric time. You'd think we can just interchange the . and : so you should wake up 12:83…, or 2:83… the next day. But no, it's apparently 2:75 metric time. Why? Also nice how they IMMEDIATELY ran into a continuing fraction 1/3, which is exactly the point of the 60-minute hour, 24-hour day, or 360-degree circle: lots of facto…
It’s too bad it doesn’t take exactly 360 days for the earth to orbit the Sun. We should do something about that.
Metric Time
211–220 of 343 posts
Re: Metric Time
#212Earlier quoted context omitted.
Making it oriented on UTC+0100 is dumb
They used CET as a reference, the local timezone of the Swatch headquarters.
Re: Metric Time
#213Earlier quoted context omitted.
> Also nice how they IMMEDIATELY ran into a continuing fraction 1/3, which is exactly the point of the 60-minute hour, 24-hour day, or 360-degree circle: lots of factors. While I agree in principle, this example is not evidence of it. It's not like we measured the amount of sleep needed and it's precisely 8 hours. A more reasonable thing to say would be: You need to sleep for 3.5 metric hours.
Exactly. The exact amount of sleep needed on average is almost certainly an irrational number. (Because almost every number is irrational)
Also it is invalid to compare infinite series like you do in your paracentesis argument, there are infinitely many irrational numbers and infinitely many rational ones. If you do it, you run in to contradictions. (Something which is related to Cantor's paradox)
Re: Metric Time
#214I love how the example is super confusing. You sleep 3.33… metric hours. You fall asleep 9:50 metric time. You'd think we can just interchange the . and : so you should wake up 12:83…, or 2:83… the next day. But no, it's apparently 2:75 metric time. Why? Also nice how they IMMEDIATELY ran into a continuing fraction 1/3, which is exactly the point of the 60-minute hour, 24-hour day, or 360-degree circle: lots of facto…
We need tau-rational-time! We sleep for τ/3, noon is at π.
Re: Metric Time
#215Earlier quoted context omitted.
No because its a humane rather than scientific system. Day lengths in a scientific time vary, but in this system the hours are defined to be 10ths of a solar day so they vary as the day varies. Scientific measurement should be done with a different system. I'd suggest something based on the speed of light.
> … but in this system the hours are defined to be 10ths of a solar day so they vary as the day varies. This is reasonable and not unsafe at all, particularly when it comes to timing things like exposure time with patients receiving radiation therapy. However, we will be left wondering why treatment in the summer is more effective that treatment in the winter. Must be the nice weather.
I recommend using as little as date/day mechanics as you can get away with. Instead using a monotonic durations as much as you can [1].
If you continue to program with date/day mechanics you'll run into plenty of issues when users cross timezones or just set the time on their phone to a different one.
Re: Metric Time
#216While metric time has some appeal, I think it is not ambitious enough. Base 10 is not good. 10 just does not have enough factors, so we are left to deal with complex fractions. Let's instead use base-12 numerals and keep time unchanged! In base 12, 1 year is 10 months (or 265 days), 1 day is 20 hours, 1 hour is 50 minutes and a minute is 50 seconds. Easy enough! Edit: wait! I just realized this is still not ambitious…
"Ten", "eleven" and "twelve" can stay the same. "Thirteen" to "nineteen" are more problematic since "*teen" refers to "ten". We would like something meaning twelve-one, twelve-two and so on. Then "two-twelve" intead of "twenty" ? Feels heavy. Maybe stick to "twenty" then ?
Oh, and what about retro-compatibility ?
Edit: or we could go back to Imperial units. Wow
Edit2: the wikipedia page about dozenal systems is pretty interesting https://en.wikipedia.org/wiki/Duodecimal
Re: Metric Time
#217This is cool. However, for me, it's the months that are the weirdest issue. Why do we all get paid the same each month, pay the same rent/mortgage but some months have 4 weekends, some have 5. We should have 13 months, all 28 days long, exactly 4 weeks. Whenever there's a leap year we get an extra day for free. :-)
> Why do we all get paid the same each month, pay the same rent/mortgage but some months have 4 weekends, some have 5. Is paying monthly an American thing? In Australia most things seem to revolve around n weeks. - I get paid on Thu every second week (2 weeks) - My pre-paid phone auto-recharged is every 28 days (4 weeks). - House rentals are listed as weekly rates, paid at whatever n weeks you negotiate. - Mortgages…
So… getting payed weekly is something australian, I guess?
Re: Metric Time
#218Re: Metric Time
#219Earlier quoted context omitted.
In a way, China kind of has something like the Swatch gimmick for real. There's just one time zone in the whole country (which is roughly the size of the Continental US). This has benefits (easy to coordinate video conferences in different cities) and drawbacks (the official time is far off from what the sun would indicate in much of China).
It only works because the overwhelming majority of the population and all of the political and economic power lies on the east coast of China in a single time zone. I doubt that the people in Urumqi are happy to have the sun rise at 10 am, and I doubt that anyone cares about their opinions.
Of course to your actual point and everybody else that brings that same one up. You do not need to wake up at 8am every day ... If the sun actually rises at 1400 then feel free to start your day at 1500. I'm not sure what why people keep arguing as-if they can't figure out a time besides 8am to wake up; look at the world around you, so many people wake up at wildly different times in a timezone.
Re: Metric Time
#220Earlier quoted context omitted.
I think they said what _they_ meant _and_ still meant what _you_ said.
Is this a common joke?