Does anybody know if Adobe Analytics, like Google Analytics, is also defining all bounced sessions/ single page visit as 0 seconds in duration?
Rebecca, it depends as a single page visit may include onpage events tracked. As a result there may be more than one hit events. The result may also depend on the dimension and metric you are using. I recommend to review the following article for a thorough understanding https://docs.adobe.com/content/help/en/analytics/components/variables/metrics/metrics-time-spent.htm... (scroll to examples of calculation)