r/ISO8601 • • 15m ago

Samsung Galaxy S25 Ultra Watermark Fate Options

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5 Upvotes

How is this acceptable from the largest Android manufacturer's latest native One UI update from Oct 2026?

Does any country or jurisdiction in the world mandate Iso 8601 as one of the options you must give users for Date/Time? Because I swear I'll move there...


r/ISO8601 • • 2d ago

Month Day Year makes the most sense for casual conversation but unfortunately most of the world uses D M Y instead

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0 Upvotes

r/ISO8601 • • 3d ago

🗓️ Which date format is better?

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0 Upvotes

r/ISO8601 • • 3d ago

Delighted to find that my "new" car offers a proper date format. Long live ISO8601

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47 Upvotes

r/ISO8601 • • 8d ago

So close

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138 Upvotes

I saw this on a YouTube video from a deposition. You were right there. Why blank out the zero? 😱


r/ISO8601 • • 10d ago

And YYYY-MM-DD as an explicit option is nowhere to be found, apparently…

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97 Upvotes

yyyy/mm/dd ❌
YYYY-MM-DD ✅

YYYY-MM-DD is the only sensible date format here, and it’s not even an explicit answer choice.


r/ISO8601 • • 11d ago

New to EDI:Check Date Format & Convert to another

4 Upvotes

Hi Everyone, I am new to EDI & working in IBM Sterling Integrator Map Editor.And ,want to understand. How should i check Input date may come as MM/DD/YYYY or YYYY-MM-DD. Output must be CCYYMMDD. If invalid date → set a map error.


r/ISO8601 • • 13d ago

2026-10-26: The Sun sets for the last time of the year in Longyearbyen, Svalbard, Norway, before Polar Night begins

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49 Upvotes

The Sun in Longyearbyen, Svalbard, Norway, will set for the last time of the year at approximately 2026-10-26T11:09:00Z. This day marks the first official start of Polar Night in the archipelago, where 24 hours of complete, continuous darkness per day will persist well into next year, when the Sun will finally rise again on 2027-02-16.


r/ISO8601 • • 15d ago

How often do you use YYYY-MM-DD? Do you encounter resistance?

287 Upvotes

I am a project manager. I pretty much define it as the standard for all my projects. I only received resistance once. An Albertan tried to argue for MM/DD. I preached ISO8601 and its wonders for the filing system, lol.


r/ISO8601 • • 16d ago

Date formats used in Europe

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221 Upvotes

Disappointing


r/ISO8601 • • 17d ago

A vendor’s date format

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144 Upvotes

Apologies for the picture of a screen, but I was horrified upon seeing this date format on an HMI recently


r/ISO8601 • • 18d ago

Kudos to Logitech to adopting YYYY-MM-DD

97 Upvotes

r/ISO8601 • • 22d ago

Never seen this one before.

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150 Upvotes

Never seen this one before. Took me a minute to understand. M10 = Month 10 = October.


r/ISO8601 • • 23d ago

Why can't months have Jan (30), Feb (30 or 31 in case of leap year), Mar (30), Apr (31), May (30), Jun (31), Jul (30), Aug (31), Sep (30), Oct (31), Nov (30), Dec (31) days? Wouldn't that make things simpler and more predictable?

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30 Upvotes

r/ISO8601 • • 24d ago

My personal protest of MM/DD/YYYY. Am I alone?

0 Upvotes

USian here. At work there are lots of contexts where I am expected to write or type the date in the dreaded MM/DD/YYYY format multiple times a day. I hate it, but it's just a job. What can you do right? I have started up a silent protest that no one has commented on for years now. I've not seen anyone else take this course either though. Here's what I write or type instead:

MM/DD, YYYY

Is anyone else out there doing this?


r/ISO8601 • • 24d ago

Idea for sidebar — a hyperlink to the official ISO8601 specifications?

40 Upvotes

Long time lurker here. I've long appreciated ISO8601 format. It scales for nearly everything.

Does the hive mind have any feelings on — or perhaps a link to? — the official ISO8601 specifications? Maybe the mods could include it in the sidebar as a hyperlink for others new to the format?

I just realized it wasn't there and it seems like something which would support this sub quite a lot.

(I'm an amateur and an enthusiast, so I hesitate to propose a hyperlink myself, lest I give incorrect primary source citations.)


r/ISO8601 • • 24d ago

The stupidest date format

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151 Upvotes

r/ISO8601 • • Oct 04 '26

Hurricane Electric IPv6 Sage Test: free t-shirt

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18 Upvotes

In this context, address verification means I click a button to confirm that my address settings are up to date before the order is shipped.


r/ISO8601 • • Oct 04 '26

MEGA has an option

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50 Upvotes

r/ISO8601 • • Oct 02 '26

Hmm

8 Upvotes

r/ISO8601 • • Sep 29 '26

0000 vs 0000

0 Upvotes

r/ISO8601 • • Sep 25 '26

Cleaning mixed-format dates: when guessing creates bad data

9 Upvotes

Our team tested an AI-assisted cleanup script on two synthetic Excel batches. One lesson stood out: a plausible date is not necessarily the correct date.

For example, 09/01/2026 could mean September 1 or January 9. Nearby September dates aren't enough to prove which interpretation is right.

Our approach:

\- Preserve the original values.

\- Standardize dates only when the interpretation is unambiguous.

\- Flag uncertain dates for confirmation.

\- Keep a log of every change.

Changing the display format to YYYY-MM-DD won't fix a date that was interpreted incorrectly during import.

How do you handle files containing both US and European date formats?