use strict;
use warnings;

use Time::Piece;
use Time::Seconds qw/ ONE_DAY /;

my $stamp = ('2025-06-30 14:40:26');
my $tp = Time::Piece->strptime (substr ($stamp, 0, 10), '%Y-%m-%d');
my $dayssince = (localtime() - $tp) / ONE_DAY;

if ($dayssince < 20) {
print "20 days havent passed\n";
}
else {
  print "20 days have passed\n";
}