G'day hippo,

++ I agree with your approach; particularly in light of the OP's "I am not concerned about daylight savings time, time zone nor do I need HMS.".

Having said that, I believe use of the ONE_DAY constant from Time::Seconds (also a core module) would add clarity.

It's the same value: 

$ perl -E 'use Time::Seconds; say ONE_DAY'
86400

[download]

It works as a direct replacement in your code: 

$ perl -e '
    use strict;
    use warnings;

    use Time::Piece;
    use Time::Seconds;

    my $t = Time::Piece->strptime($ARGV[0], "%d/%m/%Y");
    printf "Date as supplied: %s\n", $t->dmy("/");
    $t = $t - ONE_DAY;
    printf "Date minus one day: %s\n", $t->dmy("/");
' 01/12/2022
Date as supplied: 01/12/2022
Date minus one day: 30/11/2022

[download]

— Ken

In reply to Re^2: Yesterday's date by kcott
in thread Yesterday's date by jpys

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