What are the calculation rules for total spent time?

Hi @leozh1, so the field you have in your screenshot is counting in seconds, not in minutes. Which means first you need to convert your measure to seconds. This time is counted against specific dimensions. In your example, you have pages. It will use the timestamps to calculate how long people spent on the page. The exception is if it's the last page of the visit, because there is no "end" time stamp, it won't be included. So, for example

Visit 1

Page A 11:00:00

Page B 11:00:30

Visit 2 

Page C 12:00:00

Page A 12:01:00

Page B 12:01:45

Visit 3

Page C 1:00:00

Page A 1:00:10

If we want to get the total time for each page,

Page A gets 30 seconds from the first visit and 45 seconds from the second. It doesn't count any time from the third visit because it's the last page, so there is no end time stamp for it to compute with. It would end up with 75 seconds

Page B wouldn't get any time calculated since it's the last page seen in each visit, so it would have 0.

Page C would get counted in both visits it's seen in, 1 minute from visit 2 and 10 seconds from visit 3, so a total of 70 seconds.

This page here explains how the different time metrics are calculated. How Time Spent is calculated in Adobe Analytics | Adobe Analytics

Hope this helps.

@leozh1 I've merged this new question with your previous one since they're the same. 

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@leozh1 wrote:

 

I found that eVars and props are also included in the total spent time. Currently, my calculation rules only use post_visid_high, post_visid_low, post_pagename, visit_num, visit_page_num, and cust_hit_time_gmt to calculate spent_time. How should I calculate the corresponding spent_time for eVars and props?

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If I understand what you're trying to do correctly, you want to calculate the time between instances of an evar firing and not necessarily the page. You could replace the page dimension with the evar # that you're interested in. Using the evar column, not the post_evar column, will show you the hits where the value fired. You then just do the same calculation that you would with page name, using the time stamp between the two. 

Note, if you try to use the post_evar column, this will include any hits where the value persisted and not just those where it actually fired.