21 Jul 16 7:42 am
Google actually do not turns on a timer when you come to the page. First, it tracks when you came to the page, then it tracks when the session was over and then it consuming these two values and all. Actually, if you'd like to know where he takes the data when counting the oin-page time, the first thing is:
Google Analytics code specified on the pages of your website;
the second thing is: Browser Google Chrome, but I'm not actually sure if its not such a complex task for google to track the time via Chrome and compare it with the data from analytics.
Also, I have question about the tracking on-page time. How do you think, will the google analytics count as the end of the session on the website when user come from the page where the GA is installed to the page where it doesn't?