It's literally not a problem at all. It's just one bit of information to remember in your head (I explained in a sibling comment how common US-style date in software, so for anyone who used computer longer than their last iPhone, it's just one bit of information - either date in US style or not). But with Go formatting it's even simpler - you literally never think about it.
You just remember that it's "January 2nd" and that's it. I'm so surprised that people trying to present it as a huge problem, let alone "insane" or "bizzare".
Your assertions do not make that a reality.
> But with Go formatting it's even simpler - you literally never think about it.
True, because you quickly learn to use something else.
What reality? I write Go almost daily for 9 years and was running Golang meetups in two countries for years. I think I have pretty good grasp of what actual problem real people have with dates in Go. Order of day-month in mnemonic ("Jan 2nd" vs "Feb 1st") is literally not a problem. This problem exists only in HN comments of people used to other approaches.
Like, when you need to present current date so it looks like "11 December, 2022" - where your issue starts with Go's approach? Can you walk me through your thought process here? I'm genuinly curious.
I mean, you literally got it wrong in this comment, so maybe it’s worth considering whether such a simple mistake might be hard to catch and thus cause real production issues?
The Go approach is barely "more efficient" if your only consideration is exclusively US-centric, it's outright hell everywhere else, because US date formats make even less sense than their units. Go's datetime format is gimmicky, gimpy (it's missing a good fifth of the TR35 fields, to say nothing of the field formats), inextensible, and localisation-hostiles.
It's also telling that while Go made up this nonsense with date formats, they retained the significantly worse and more error prone printf formats for, well, printf, in case mixing the two might have been an option (as it is in python for instance).