That's... a terrible argument.
1970-01-01T00:00:00 is the start of the Unix Epoch, it is definitely not 1970-00-01T00:00:00.
This is consistent across all the warty and various ways to represent the Gregorian calendar, the fifth month is always May, no exceptions.
I think parent means that we often say:
> I get my check on the first of the month
But never really say
> I'm going on vacation for the sixth (month) of the year
Seems like they are just trying to explain the bad decision, not justify it.
Yes, I'm not trying to justify it. And it's not just that we say "the fifth day of May," because it's also true that we can say "the third month." My point is that the fifth day of May is actually named "5" and there's no other name for dates (other than specially=named days, of course).
> Months arguably don't have widely-used numeric names,
You forgot about east asian languages, which all use numeral months.
https://en.wikipedia.org/wiki/Chinese_calendar#Month
Wasn't the reason for the 0-indexed month that this would make picking the name of the month from the 0-indexed array of month names easier?
Re:Fixing JavaScript's Date (2017)
by paulddraper on Thursday February 27, 2020 @08:14PM
(#22439720)
That consistent with days of the week, which start at 0 on Sunday.
The bigger WTF is getYear(), which returns the year minus 1,900.
It occurs to me that "9/11" is the one date I can think of where the month is commonly verbally referred to by its number.