The module Calendar::Simple will do it. Here is how you could use it to get the days in the current month (it gets the last day of the last week of the month): 
use strict;
use Calendar::Simple;

my $mon = (localtime)[4] + 1;
my $yr = ((localtime)[5] + 1900);

my @month = calendar($mon, $yr);
print $month[-1][-1],"\n";

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In reply to Re: Re: Re: Localtime by tall_man
in thread How to get 3-letter month abbreviations ? by powerhouse

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