@ChrisCh4
profile.browserTime specifies only the respective browser time. See this for details:
https://experienceleague.adobe.com/en/docs/target/using/audiences/visitor-profiles/variables-profile...
With this you can e.g. determine if it is morning or rather evening for the user and accordingly display e.g. personalizations.
If you want to track time spent on site, you can easily create your own script as a kind of counter. There are several possibilities how to build it - I would recommend grouping values in buckets like:
less than 15 seconds
15 to 29 seconds
30 to 59 seconds
1 to 3 minutes
3 to 5 minutes
5 to 10 minutes
10 to 15 minutes
15 to 20 minutes
20 to 30 minutes
more than 30 minutes
let me know if you’re not familiar with profile scripts.