Google keep a time stamp whatever any visitor comes on a particular page then it COMPARES the time stamp of ONE page with the other page.

For instance, any user ENTERS the site on Page 1 and moves to Page 2 then move to Page 3 lastly leaves the site. For this SITUATION, a period stamp is put on Page 1 assume its 10:00, when the client moves to Page 2, some other time stamp is set on Page 2, assume its 10:10 and afterward when the visitor comes on Page 3, some other time stamp is set, lets say 10:15. Presently to compute time on Page 1, Google will SUBTRACT the time stamp on Page 2 with that of 1. For this situation, 10:10-10:00 which will come to 10 minutes for Page 1.

Google keep a time stamp whatever any visitor comes on a particular page then it compares the time stamp of one page with the other page.

For instance, any user enters the site on Page 1 and moves to Page 2 then move to Page 3 lastly leaves the site. For this situation, a period stamp is put on Page 1 assume its 10:00, when the client moves to Page 2, some other time stamp is set on Page 2, assume its 10:10 and afterward when the visitor comes on Page 3, some other time stamp is set, lets say 10:15. Presently to compute time on Page 1, Google will subtract the time stamp on Page 2 with that of 1. For this situation, 10:10-10:00 which will come to 10 minutes for Page 1.