Active

r/iso8601

Community dedicated to the international standard YYYY-MM-DD date format.

Subscribers

36,043

Created

January 22, 2012

14 years ago

View on Reddit
RedPulse insight

How to think about r/iso8601

This community is dedicated to the ISO 8601 standard for date and time representation, emphasizing clarity and unambiguity in date formats. Members engage in discussions about the merits of using the YYYY-MM-DD format over other notations, as well as the implications of standardization in various contexts. The community stands out for its technical focus and the passionate advocacy for adopting this internationally recognized format.

Confidence 4/5

  • Audience

    Participants in this community are typically tech-savvy individuals, including programmers, data analysts, and enthusiasts of standardization. They often have a strong interest in clarity and precision in data representation, and they engage with the content in a constructive and analytical manner. The vibe is generally supportive, with members sharing knowledge and insights about best practices in date formatting.

  • Posting culture

    Content that thrives in this community includes technical discussions, examples of date formatting, and critiques of non-standard practices. Posts that are overly promotional or lack substance tend to receive downvotes. Members are encouraged to provide well-researched contributions and engage in thoughtful dialogue, with a preference for clarity and precision in communication. The posting frequency is moderate, with active discussions occurring regularly.

  • Brand engagement notes

    Brands should approach this community with caution, as members are often skeptical of overt promotion. Authentic engagement through sharing valuable insights related to date formatting, software solutions that adhere to ISO 8601, or educational content about standardization can resonate well. Avoiding promotional language and instead contributing to discussions in a meaningful way will likely yield better reception. Brands should focus on establishing credibility and trust before attempting to promote products or services.

Top keywords

What r/iso8601 talks about

Weighted by how often each term appears in posts and comments, relative to baseline frequency. The largest words are the strongest signals of community focus.

unambiguousstandardizationnon-standardnumericallysuffixparsingclose…y:separatorsnumberingtacking28-29notationdashes24-hourconfigurablelocalesjumbleymabacusboss'ferventlyoff-whiteessalphabetically17:00clickupentreespecifiesmanglerenamingcalendars24hrformatsslashesabbreviationcity:system'shas:rfcbegrudginglypuristfilesysteminformallyzerosalphabeticalobjectedreadabilitydefaulted10-14unspecifiednumericlong…formattedleft:kilometermodernizedfan-madenegatingcountrymen

External signals

Where the community looks

Top external domains linked from posts and comments — a quick read on the sources of truth this audience trusts.

Top contributors

Who shapes the conversation

The most active and most-upvoted posters and commenters in this community. Useful when planning outreach or studying a community's tastemakers.

Top posters

By post count

By votes

Top commenters

By comment count

By votes

Similar communities

Where this audience also spends time

Topic-adjacent communities surfaced from Reddit's own related subreddit signal.

FAQ

r/iso8601 — frequently asked questions

Quick facts about this subreddit's size, history, focus, and related communities.

How many subscribers does r/iso8601 have?

r/iso8601 has approximately 36,043 subscribers as of May 27, 2026.

When was r/iso8601 created?

r/iso8601 was created on January 22, 2012 (14 years ago).

What is r/iso8601 about?

This community is dedicated to the ISO 8601 standard for date and time representation, emphasizing clarity and unambiguity in date formats. Members engage in discussions about the merits of using the YYYY-MM-DD format over other notations, as well as the implications of standardization in various contexts. The community stands out for its technical focus and the passionate a…

What subreddits are similar to r/iso8601?

Communities similar to r/iso8601 include r/itsaunixsystem, r/metric, r/baduibattles, r/xkcd, r/programmerdadjokes.

Who are the most active posters on r/iso8601?

The most frequent posters on r/iso8601 include u/im557-reddit, u/PouLS_PL, u/OtterSou.

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