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https://en.wikipedia.org/wiki/ISO_8601
[D] is the weekday number, from 1 through 7, beginning with Monday and ending with Sunday.
I always knew starting the week on Sunday was messed up. Thankfully there’s an ISO to back me up
Once all the boomers are dead, y’all wanna adopt Symmetry454 or nah?
Who the hell starts the week with Sunday?
Brazil!
Monday is called “Segunda” wich means “second” and every weekday follows this. So the Nth day of the week is called Nth except weekends
I always think of segunda-feira as the first day of the week, despite the name; though it appears that calendars here start on Sunday (something I’ve never noticed).
While it is the first day of the work week, it makes more sense to think of it as the second day in Portuguese so the naming stays consistent.
The US people. There went “What does the whole planet start their week on? Really? Well in that case we’ll pick Sunday”.
A bit like what they did for pretty much everything else.
heard it’s the British
My FiL gifted me an art calendar from 1998. I was confused at first, then he said the calendar days of 1998 are the same days for 2026. So, that’s a thing we all know now!
There exist only 14 different calendars.
Jan 1= monday, Jan 1 = tuesday, …, Jan 1= sunday, and again the same 7 combinations for leap years.
There is a difference for hollidays like easter that are based on the moon cycle, but just from the days of the week its only 14.
Weeks start on Mondays
This. Sunday is part of the weekend, not the weekstart.
But there’s no such thing as the word “weekstart.” Weekends are split in half. Saturday is the end of the week and Sunday is the beginning of the week. I am from USA and this has always been my understanding.
What do people that start the week on sunday call the “weekend”? For them only Saturday is the weekend and Sunday is the weekstart or what?
Weekend like bookend, both sides.
Ah yes, Weekends are like bookends. I like your analogy.
If these nonces up there can understand that there’s no such thing as a “bookstart,” they can begin to understand the concept of weekends holding the week together from opposite ends.
Σαββατοκύριακο. Saturday and Sunday. It would be far weirder to start the week on Δευτέρα which literally meaning “second”.
Of course in English and other languages Monday does not mean second. Still for Mose western (plus Arabs) Monday has been second after Sunday. Long before Saturday was a day off.
ISO defining the start of the week as Monday due to it being the first business day (lol) has comparatively little impact.
It’s the Front end buddy
Depends, mine starts on Monday. I also live in SI and ISO. My wife’s starts on Sunday, she goes to church. Although I still don’t get that as the seventh day was a rest day.
It does sometimes make talking about Sunday next week confusing.
Because sabbath was the seventh day, the rest day. It predates Christianity. It’s like the very first book of the Old Testament…
What day was the Christian day of rest & worship day again?
8601 represent
Edit for all of the dumb fucks downvoting me (can’t believe I have to explain this): SI and ISO are STANDARDS, not places where you can live. Holy fucking shit.
Oh lol way to embarrass yourself
What in the fuck are you talking about?
One does not live in SI if one means standard units (like ISO)
You are one unique being lmao
We do
Practically everyone should know SI, or have at least heard of it before. It’s the standard system of measurement used in most of the world. It includes base units for time (seconds), distance (meters), mass (kilograms), electric current (amps), temperature (Kelvin), amount of a substance (mole) and intensity of light (candela), plus a bunch of units derived from these.
It’s practically only the USA that doesn’t use some of three units (for example, preferring feet over meters)
ISO is a standards body. They define a bunch of standards. One of the more well-known ones is ISO 8601, which defines standards for dates and times. It specifies that weeks start on Monday.
You replied to wrong person I think 😉
American self-reporting
I’d thought I’d see less people of the USA on Lemmy but it seems I cannot escape them
Says the person posting from a US instance…
Care to explain? I’m new to Lemmy so haven’t found the ropes yet. I know there are different instances but no clue about the global server architecture
We have our ISO and Americans have their ANSI, everyone has something
It depends on the country. While most countries start it in Monday, Sunday is also common, some muslim countries start it on Saturday, and Maldives starts the week on Fridays.
february 2026 mo tu we th fr sa su 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28Motu weth, fr’sa su
Cthulhu awakens
february 2027 mo tu we th fr sa su 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28I only go by the Linux “cal” command.
“cal” command.
TIL about
cal. It’s a standard util-linux command! And it follow my locale automatically :0right! like, why complicate things?
But my cal starts on Sunday. What are your locale settings?
that means (if your locale is set according to your position), you are probably somewhere in the blue area on this, while I’m in the orange.
https://commons.wikimedia.org/wiki/File:First_Day_of_Week_World_Map.svg
I wish this is how we arranged it. Makes so much more sense
Alas, my brain is too used to wed in the middle
I have good news for you. Wednesday in German is Mittwoch=midweek
Yeah, becase it’s in the middle of the week. The weekend is after the end of the week.
Weekends can be like bookends, where you have one on each end.
feb 2027
nice
ISO-8601 strikes again. Sunday week start master race rejoice
https://en.wikipedia.org/wiki/ISO_8601
[D] is the weekday number, from 1 through 7, beginning with Monday and ending with Sunday.
Monday is the start of the week and I will die on this hill
100%. Saturday and Sunday are the weekend, you know, like the end of the week.
Weekends can be like bookends, where you have one on each end.
Heretic.
Heretic.
ISO-8601 weeks start on Monday.
I don’t get it…
February starting on a Sunday also means two Friday 13th in a row, except in leap years.
This could be every month if we adopted a 13 month calendar of 4, 7 day weeks. Works out very cleanly with only 1 extra day per year.
The best part is that every date (i.e. the 1st, the 22nd, etc) would always fall on the same day of the week, every month.
While we’re changing the calendar, can we rename September through December so they’re not off by two?
Septem, Octo, Novem and Decem are the Latin words for 7, 8, 9 and 10 respectively, but they’re actually the 9th, 10th, 11th and 12th months of the year. This is because the Roman calendar was originally only 10 months, but Julius Caesar inserted two new months in the middle, without renaming the last four.
Maybe the oldest tech debt in existence - the calendar was changed in 45 BC.
In Japanese months are named based on the number of the month, literally “first month” to “12th month”, which is the most sensible way to do it
Why not just call February 2026 “month 2 of 2026” and call the 9th of February 2026 “the 9th of month 2 of 2026”
But then we’d have to deal with that lousy Smarch weather
The true ideal.
Behold Symmetry454, the TRUE true ideal.
Combined with Holocene calendar and decimal time… hnrggh… one can dream! I actually designed a spreadsheet for exactly this and it works perfectly. Only issue is that it doesn’t auto-update, you need to edit an empty cell of the spreadsheet (doesn’t even need to be saved), for it to update to the current time.
Would be nice to have an installation that lets you use that calendar and time format…
People are superstitious and would never allow a 13th month
Worse than that, in order to preserve the date/day-of-week correlation, the extra 1-2 days (you still need leap years) would not have to be part of any week.
So that’s instant opposition from all the Abrahamic religions.
Oh wow, my birthday is on a Sunday this year. I don’t have to get up early? Yaaay!
This looks so wrong.
1 in 7 chance [if you sample from infinite years]
That can’t be correct, can it?
They would have a rotating 7 year schedule, but it’s messed up by leap years. You have the seven calendars you’re thinking of and 1-2 leap year calendars mixed into those 7 years. It would have to be somewhere between 1 in 8 and 1 in 9, wouldn’t it?
No, since there’s only 7 different possibilities, then over a sufficiently large sample, the probabilities would all still balance out to 1 in 7.
I think it’s more like 303/2800 chance.
There are 97 leap days every 400 years, then the calendar repeats. So you have 303/400 chance of not having a leap year, and in those years, you get a 1/7 chance of having this calendar. Thus 303/2800.
the first day of the month moves forward one weekday each year except mar-dec on a leap year which moves forward two weekdays
