[BUG] - Age incorrect, does not account for month

[flennic]

Context

It seems that the calculation of the age is wrong. Given that "today" is defined as 04.11.2024 and that the personal number is "19841120-0788":

Expected outcome

The age should be 39, as the person did not have birthday yet (20. November).

Actual outcome

Description

The calculation only takes into account the years (2024 - 1984) but does not account for the month. I am not sure this is maybe the "age" definition according to some law or personal number requirement. But if not, it is most likely a bug.

If you confirm that it is a bug, I can create a PR fixing the issue.

Minimal reproducible test case

Set system time to 04.10.2024, any time.

var personnummer = new Personnummer.Personnummer("19841120-0788");


Console.WriteLine(personnummer.Age);

[flennic]

PR created here: #104

[Johannestegner]

Quite amazed that we haven't seen this before, quite a novice mistake on how I implemented the age check.
Thanks for the find! :)