Yes, I want to calculate the APDEX for the application during my tests, not wait until production metrics or other reports.
you can find time informations about users by result's file of the interesting test: open Analysis to handle the file, then go the metric and choose "Raw Data" from the tag on the left of the graph. Here you can see the data results of the test launch for every Vusers, you can also select a particular group, transaction's state (Pass or Failed), ecc.
Below an image from a Web HTTP/HTML load test Analysis:
Tell me if this can help you with the issue,