this post was submitted on 11 Jun 2025
536 points (86.9% liked)
memes
15556 readers
3081 users here now
Community rules
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads
No advertisements or spam. This is an instance rule and the only way to live.
A collection of some classic Lemmy memes for your enjoyment
Sister communities
- !tenforward@lemmy.world : Star Trek memes, chat and shitposts
- !lemmyshitpost@lemmy.world : Lemmy Shitposts, anything and everything goes.
- !linuxmemes@lemmy.world : Linux themed memes
- !comicstrips@lemmy.world : for those who love comic stories.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Anyone help enlighten me about whatever this and unix epoch are getting at? Are these really more specific/better than iso 8601 and why specifically?
Happily!
So, first epoch time. It's a pretty robust standard, covers many use cases, has few edge cases... but it's specifically for machine usage, since it's not human readable and it's not reversible into the past (pre-1970).
ISO 8601 (depending on the annum), by the text of the documentation, these are all valid dates:
Etc.
RFC 3339 (& RFC 9557, it's newest modification) is actually a subset of ISO 8601 and is far more prescriptive. For example you must have a timezone designator. You must have a separator between the date and time. You must use a dash between date elements and a colon between time elements. You can easily add standardized subseconds.
This means that RFC 3339 is much easier to parse and use by both machines and humans.
This page (reddit, I know...) has a great summary, and so in the interest of knowledge and attribution I'll link it: https://www.reddit.com/r/ISO8601/comments/p572xy/rfc_3339_versus_iso_8601/
This website allows you to more directly compare the two interactively. https://ijmacd.github.io/rfc3339-iso8601/
This is delicious, and I can't say thank you enough. I like this a lot. If anyone has any insight on more superior standards or subsets of these, please inform me. This made my day tho 😊
ISO is a wider standard than the RFC standards though which is only for the internet