It always depends what our end objective are for which we are doing the
analysis.1)For example if i want to study the average time spent on each
my specific page, then I would go by the Site Content> Pages Report and
add Average Time Spent on Page metric (pre-defined standard
metric).However, as per your query,"The "average time spent on a page"
metric should display a time as close as the actual time the user spends
on a page, including clicks to links, video views etc. but NOT visits to
a new ...