Get months / years between two dates.

[Adam D. Ruppe]

On Wednesday, 6 May 2020 at 19:51:01 UTC, bauss wrote:
> How will I get the months or years between the two dates?

What's the length of a month or a year? That's the tricky part - 
they have variable lengths. So a difference of one month is not 
super precise.

You could probably just do days / 365 or days / 30 to get a 
reasonable approximation but that's why the library doesn't give 
you an easy pre-made answer.