ISO 8601 - SLRPNK

https://xkcd.com/1179 [https://xkcd.com/1179]

10:13 PM on February 27th, but how do you write the year?
10:13pm or 8:13pm? I can see how this is confusing…

So, assuming you got the time wrong and meant you could confuse year and time of day, ISO also put time after date.

2025-05-01T18:18:03Z

Which makes sense. Higher unit to lower unit.