Time Spent per Visit and Page View

Hello, 

First off, since Time Spent is calculated based on difference between time stamps, I believe that bounces should already be excluded by default (as there is no time calculated). This also applies to "last page of visit".

There are some out of the box metrics for what you are looking for, but the naming can make this more confusing than it should be.

There is:

• Average Time on Site - which is based on the average time spent by the visitor per visit (this is shown as a time format: 00:00:00)
• Time Spent per Visitor (seconds) - this is the average time spent per visitor against the specified dimension across visits (this is shown as an Integer format)
• Time Spent per Visit (seconds) - this is the average time spent per visit / against the specified dimension (this is also shown as an Integer format)

For the two metrics that display in integer (i.e. the number of seconds), you can create a simple calculated metric to display as time, simply by doing this:

Now, since these are calculated metrics, sometimes they can get a little odd...

For instance, comparing these three dimensions using "Day" as my breakdown, Average Time on Site and Time Spent per Visit (custom time) match exactly, but Time Spent per Visitor (custom time) is a bit higher (I suspect some of that might come from visits that start or end in another day, i.e. cross midnight).

But, if I use these three metrics against my "Page" dimension, they all match.

The thing is, even though the name says "on Site" or "per Visit/Visitor", they are metrics that can be used with other dimensions to get time spent in those contexts.

You are right, there is also some "Total Time" metrics, but you can ignore those for your uses.

There is one more little gotcha to consider (though this may or may not still be an issue), but sometimes adding segments to the mix can cause some odd calculations to occur... We found that Time spent per visit (seconds) was a little more stable in these situations... but you should play with all three to get a feel for what they are doing and how they are responding.