Obviously, the first suggestion is to do it in the database. But if you have good reasons not to do that then consider using the core module Time::Piece:

use strict;
use warnings;

use Time::Piece;
use Time::Seconds;
use Test::More tests => 2;

my $last_update = ('2025-06-30 14:40:26');
cmp_ok days_since ($last_update), '<', 20, "$last_update is less than 
+20 days ago";

$last_update = ('2025-05-30 14:40:26');
cmp_ok days_since ($last_update), '>', 20, "$last_update is more than 
+20 days ago";

sub days_since {
    my $stamp = shift;
    my $tp = Time::Piece->strptime (substr ($stamp, 0, 10), '%Y-%m-%d'
+);
    my $dayssince = (localtime() - $tp) / ONE_DAY;
}

[download]

You might want to use gmtime instead of localtime depending on how you are storing the times in your DB.

🦛

In reply to Re: MySQL datetime by hippo
in thread MySQL datetime by joyfedl

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