Hello Monks,

This is probably something really simple but I have spend a big amount of time and still can not figure it where I am going wrong.

I am using Net::NTP module to get the time of the reference server. Next I am trying to subtract the time of mu local OS with the reference time to get the offset. But along the way I am probably doing something extremely wrong on my calculation and the number is extremely big.

I would be expecting to see a number close to -0.00841593742370605 sec but instead I get 1687.41735005379. Can someone guide to understand where I am going so wrong.

Sample of code with the process:

#!/usr/bin/perl use strict; use warnings; use Net::NTP; use Time::HiRes qw( gettimeofday ); my ($seconds, $microseconds) = gettimeofday; my %response = get_ntp_response("0.se.pool.ntp.org",123); my $localHostTime = $seconds . "." . $microseconds; my $offSet = $localHostTime - $response{'Reference Timestamp'}; print "This is what I want: ".$response{'Offset'}."\n"; print "This is what I get: ".$offSet."\n"; __END__ This is what I want: -0.00841593742370605 This is what I get: 1687.41735005379

Thank you all for your time and effort reading and replying to my question.

Seeking for Perl wisdom...on the process of learning...not there...yet!

In reply to How to calculate the offset of your local time against an NTP reference server by thanos1983

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