Timestamp difference calculation

[swami]

Hi, I was trying to calculate the time difference b/w two input timestamp in perl. But i am not getting the value. Should i do any formatting of input paramters.

#!/usr/bin/perl

use POSIX;
my $ts1 = "$ARGV[0]";
my $ts2 = "$ARGV[1]";

$diff = ($ts1 - $ts2);
print int($diff);

[kcott]

G'day swami,

Welcome to the monastery.

You'll need to show us your input as well as the actual and expected output. Guidelines for this are given in: How do I post a question effectively?

There are lots of date-related modules on CPAN; for instance, Date::Calc might be appropriate for your needs.

[choroba]

Hello swami, welcome to the Monastery.

Please, wrap your code sample into <code> ... </code> tags. See Markup in the Monastery.

What is the expected format of the input? Plese, show example input and expected output.

[2teez]

Hi,

"... I was trying to calculate the time difference b/w two input timestamp in perl..."
Please, I don't see how you are doing that here.
However, in the first place, you might want to properly placed your script in code tags see How do I post a question effectively?
Then, in the code you posted, I believe you intented $ARGV[1] NOT $ARGV1