CODEWITHSUNDEEP
javascriptphpjquerytime
Grumpymuppet
Grumpymuppet

Reputation: 101

Why are time() and Date.now giving different results?

I am almost certain my previous function worked like a charm before but fails now. Maybe someone can help me? I have the following sample HTML code:

<span id="timetest" data-starttime="<?php echo time(); ?>"><?php echo time(); ?></span>

And then in Jquery I try to get the difference between the time() and the date.now() / 1000 (because of milliseconds) like this:

var startttime = $('#timetest').data('starttime');
var submitttime = Math.floor(Date.now() / 1000);
var totalttime = submitttime - startttime;

But whatever I do the outcome of totaltime = -66 (seconds) ish. What has changed, or what am I doing wrong? Anyone else noticed this issue?

Upvotes: 2

Views: 119

Answers (1)

Grumpymuppet
Grumpymuppet

Reputation: 101

Like CBroe said above: "Not every computer system in the world necessarily has its clock set absolutely correct … If server and client are different machines, there can easily be differences"

Upvotes: 2

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