To guard against the infinite loop / leapsecond / 59 second minute 

    my $failsafe = 0;
    $time += 60 until localtime($time) =~ /$on_at:/ or $failsafe++ >  
+10_000;

[download]

Adjust the failsafe cutoff until its just large enough but not too large :) If it slows down this approach change it :) maybe use strptime

In reply to Re^2: Logical ways to calculate being within two times by Anonymous Monk
in thread Logical ways to calculate being within two times by stevieb

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