638
ISO 8601 ftw rule (gregtech.eu)
submitted 1 week ago* (last edited 1 week ago) by lena@gregtech.eu to c/196

!iso8601@lemmy.sdf.org gang, rise up

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[-] j4k3@lemmy.world 103 points 1 week ago

MM ≠ MM !!!

[-] fushuan@lemm.ee 92 points 1 week ago

"Europe", as if there weren't several languages in Europe with different date formats per language...

[-] Mr_Blott@feddit.uk 93 points 1 week ago

None of which start with the month because that would be fuckin stupid

[-] htrayl@lemmy.world 25 points 1 week ago

Meh. It's getting a lot of hate here, but I think it works well in casual short term planning. Context (July) - > precision (15).

If I want to communicate the day in the current month, I just say the day, no month.

[-] stebo02@lemmy.dbzer0.com 19 points 1 week ago

ok but by that logic you'd start with the year

[-] tomenzgg@midwest.social 15 points 1 week ago

No because the year is a super large time; there's a reason people always say they take a bit to adjust to writing the new year in dates because it's s long enough period of time that it almost becomes automatic.

For archiving, sure; most other things, no (logically, ISO-8601 is probably the best for most cases, in general, but I'll die on the hill that MM-DD-YYYY is better than DD-MM-YYYY).

[-] stebo02@lemmy.dbzer0.com 29 points 1 week ago

well either you omit the year, or you start with it

americans start with the month and end with the year, which is totally wild

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[-] nesc@lemmy.cafe 56 points 1 week ago

This pyramid visualisation doesn't work for me, unless you read time starting with seconds.

[-] Mirodir@discuss.tchncs.de 31 points 1 week ago

A pyramid is built bottom to top, not top to bottom. That's also one of the strengths of the ISO format. You can add/remove layers for arbitrary granularity and still have a valid date.

[-] Zagorath@aussie.zone 31 points 1 week ago

Yeah, but people read top to bottom. The best way to do it would be to have upside down pyramids. With the biggest blocks at the top representing the biggest unit of time (YYYY) and the smallest blocks at the bottom representing seconds & smaller.

[-] catexaminer@beehaw.org 2 points 4 days ago

What do you think this is some sort of pyramid scheme?

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[-] lena@gregtech.eu 16 points 1 week ago* (last edited 1 week ago)
[-] nesc@lemmy.cafe 29 points 1 week ago

I get it, just pyramids are misleading, also year-month-day is better because resulting number always grows. 😺

[-] Zagorath@aussie.zone 16 points 1 week ago

2025-01-26T11:40:20, you mean?

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[-] lazynooblet@lazysoci.al 53 points 1 week ago

I work with international clients and use 2025-01-26 format. Without it.. confusion.

[-] ByteJunk@lemmy.world 31 points 1 week ago

That's an ISO date, and it's gorgeous. It's the only way I'll accept working with dates and timezones, though I'll make am exception for end-user facing output, and format it according to locale if I'm positive they're not going to feed into some other app.

[-] czardestructo@lemmy.world 34 points 1 week ago

I'm almost 40 and now just realizing my insistence on how to structure all my folders and notes is actually an ISO standard. Way to go me.

[-] valkyre09@lemmy.world 15 points 1 week ago

I stumbled upon it years ago because sorting by name sorts by date. There was no other thought put into it.

[-] clockworkrat@slrpnk.net 9 points 1 week ago

It's incredibly annoying that in clinical research we are prohibited from using it because every date must comply with the GCP format (DD mmm yyyy). Every file has the GCP date appended to the end.

[-] Bo7a@lemmy.ca 33 points 1 week ago

I don't know why anyone would ever argue against this. Least precise to most precise. Like every other number we use.

(I don't know if this is true for EVERY numerical measure, but I'm sure someone will let me know of one that doesn't)

[-] endeavor@sopuli.xyz 10 points 1 week ago

They are all equally prescise. American one is stupid just like their stupid ass imperial units. European one is two systems slapped together(since they are rarely used together and when they are its the iso format) and iso is what european standard should be.

[-] Bo7a@lemmy.ca 12 points 1 week ago* (last edited 1 week ago)

You misunderstand my comment.

I'm saying the digits in a date should be printed in an order dictated by which units give the most precision.

A year is the least precise, a month is the next least, followed by day, hour, minute, second, millisecond.

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[-] myrrh@ttrpg.network 28 points 1 week ago

YYYY.MM.DD HH.MM.SS, as eru ilúvatar intended

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[-] istdaslol@feddit.org 25 points 1 week ago

My stupid ass read this top to bottom and I was confused why anyone would start with seconds

[-] derpgon@programming.dev 24 points 1 week ago

All my homies hate ISO, RFC 3339 for the win.

[-] amon@lemmy.world 21 points 1 week ago* (last edited 1 week ago)

All my homies hate ISO

Said no-one ever?

EDIT: thanks for informing me i now retract my position

Nah, ISO is a shit organization. The biggest issue is that all of their "standards" are blocked behind paywalls and can't be shared. This creates problems for open source projects that want to implement it because it inherently limits how many people are actually able to look at the standard. Compare to RFC, which always has been free. And not only that, it also has most of the standards that the internet is built upon (like HTTP and TCP, just to name a few).

Besides that, they happily looked away when members were openly taking bribes from Microsoft during the standardization of OOXML.

In any case, ISO-8601 is a garbage standard. P1Y is a valid ISO-8601 string. Good luck figuring out what that means. Here's a more comprehensive page demonstrating just how stupid ISO-8601 is: https://github.com/IJMacD/rfc3339-iso8601

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[-] sga@lemmings.world 12 points 1 week ago

if i am not wrong, it is because essentially both are same (slight differences in what is allowed and what is not, https://github.com/IJMacD/rfc3339-iso8601), but RFC is more free as in freedom

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[-] ShareMySims@lemmy.dbzer0.com 23 points 1 week ago

Maybe in programming or technical documentation, but no, when I check the date I want to know the day and the month, beyond that, it's all unnecessary information for everyday use, and we have it right in Europe.

You can't change my mind. ¯\_(ツ)_/¯

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[-] dkt@lemmy.ml 20 points 1 week ago

finally a correct version of this diagram

[-] Gork@lemm.ee 17 points 1 week ago

I often have to refrain myself from using ISO-8601 in regular emails. In a business context the MM/DD/YYYY is so much more prevalent that I don't want to stand out.

Filenames on a share drive though? ISO-8601 all the way idgaf

[-] random 16 points 1 week ago

I use ss/mm/hh/dd/MM/YYYY

t.european

[-] lolola 16 points 1 week ago

I know, why don't we all agree to agree and use every single possible format within a shared spreadsheet

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[-] Maggoty@lemmy.world 14 points 1 week ago

Mmm US military date and time is fun too.

DDMMMYYYYHHMM and time zone identifier. So 26JAN20251841Z.

So much fun.

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[-] SARGE@startrek.website 14 points 1 week ago

In one work report, I recorded the date as "1/13/25", "13/1/25" and "13JAN2025"

I have my preference, but please for the love of all that is fluffy in the universe, just stick to one format....

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[-] Track_Shovel@slrpnk.net 11 points 1 week ago
[-] lena@gregtech.eu 30 points 1 week ago
[-] Adm_Drummer@lemmy.world 12 points 1 week ago

Don't you mean: "Right there! Stop you, I'm going to."

Yoda-ass date structure.

What day, of what month, of what year is it? It's ordered by importance dammit!

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[-] azi@mander.xyz 11 points 1 week ago

Hot take: 2025-Jan-27 is better than 2025-01-27 in monolingual contexts.

[-] bigboismith@lemmy.world 32 points 1 week ago

The beautiful part of 2025/01/27 is that it can inherently be sorted without formatting.

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this post was submitted on 26 Jan 2025
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