p.s., I am aware that Date::Calc will make this easy but that is not an option for some reason :-)

Is the reason one of:

• This is homework
• You don't know because you're not the one solving this problem, and that was given as an artificial constraint
• It has to be fast
• You don't know how to install modules into your own space
• Even though you're root, you don't know how to install modules, period
• Something else I didn't think of in 30 seconds

I really get a bit annoyed when someone says "I want to do $x, but it can't include obvious solution $y", because that doesn't tell me anything about how close to $y I can get.

Please explain further.

-- Randal L. Schwartz, Perl hacker

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