[dragonwriter]

> As input, any permutation of full year, full month name, and day of the month is unambiguous wrt any date on or after January 1, 100 CE* and therefore sensible, no matter how unusual/obscure

If you are using a proleptic Gregorian (or Julian, but why on earth would you do that) calendar, sure.

If its not one of those (but its still the Roman-derived Christian calendar in some form), there are ambiguities, and if its any other calendar, it may have ambiguities and/or the elements needed to specify a date may be different, and the CE/AD year is likely not an element and not relevant to whethe or not their are ambiguities.

[cxr]

The comment I replied to specified ISO 8601. The Gregorian constraint is a given.

I put in a whole clause in my original comment to preempt this flavor of pedantic sniping that involves applying double standards. And yet here we are.