Try Date::Manip. 

use warnings; use strict;
use Date::Manip::Date 6.30; 
my $today = Date::Manip::Date->new("today");
print $today->printf("Today is: %Y-%m-%d\n");
my $month_ago = $today->calc($today->new_delta("-1 months"));
print $month_ago->printf("A month ago from today is: %Y-%m-%d\n");
my $thirty_ago = $today->calc($today->new_delta("-30 days"));
print $thirty_ago->printf("Thirty days ago from today is: %Y-%m-%d\n")
+;
__END__

[download]

The output today is this: 

Today is: 2014-04-18
A month ago from today is: 2014-03-18
Thirty days ago from today is: 2014-03-19

[download]
There's a difference between the two because March had 31 days.

In reply to Re: Find 30 days from today's date by ambrus
in thread Find 30 days from today's date by Anonymous Monk

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