Hi, the below script gets 2 sepereate hour and give me the difference between them. (ex, 08:00 - 17:00 = 9Hrs) the only problem is when i enter somthing like this( ex, (23:00 - 6:00(Am) = 17:00 should be 7) any idea how can i modify this to handle my problem or maybe use other module for me needs 
#!/usr/bin/perl
use strict;
use warnings;
use Time::Local;

sub str2time{
       my $in = shift;
       my ($hour, $min, $sec) = split (/:/, $in);
       my ($mday,$mon,$year) = (localtime(time))[3,4,5];
       my $retn;
               eval {      $retn = timelocal($sec,$min,$hour,$mday,$mo
+n,$year);   };
        return $retn;
  }       
    
print "Please enter the first time in HH:MM:SS format: ";
my $intime = <STDIN>;
chomp $intime;
my $time1 = str2time($intime);
die "Invalid time: $intime\n" if !defined $time1;       

print "Please enter the 2nd   time in HH:MM:SS format: ";
$intime = <STDIN>;
chomp $intime;
my $time2 = str2time($intime);
die "Invalid time: $intime\n" if !defined $time1;

my $diff;
if ( $time1 > $time2 ) {    $diff = $time1 - $time2}
else {    $diff = $time2 - $time1}

my $mins  = int($diff / 60);
my $hours = int($mins / 60);
$mins     = $mins - ($hours * 60);
my $secs  = $diff - ($mins  * 60);
printf "Difference: %02d:%02d:%02d\n", $hours,$mins,$secs;

[download]

In reply to Subtract Hours by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.