Minor bump in speed can be obtained with use integer; Other than that, just keep your code as laconic as possible, avoiding temporary variables and statements: 

sub parse_duration {
    use integer;
    sprintf("%02d:%02d:%02d", $_[0]/3600, $_[0]/60%60, $_[0]%60);
}

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In reply to Re: Convert time in seconds to hh::mm::ss by Anonymous Monk
in thread Convert time in seconds to hh::mm::ss by bangor

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