($hour %= 12) ||= 12;

[download]
I find this to be easier to explain: 
$hour = ($hour + 11) % 12 + 1;

[download]

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re^2: Basic programming question by merlyn
in thread Basic programming question by j.goor

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