timeformat Question

[BJ]

Wow Kevin this is exactly what I was looking for. Definitely much cleaner than what I was trying too.

This works great but I was wondering if you could write a quick explanation of this portion of code?

Code:

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#sub GetFirstDayOfaMonth
function year month DateTime&dt
int day=1
dt.FromParts(year month day)
ret

I get the gist of it but I've never seen the #sub tag used before.