Try this:
- Open the session for edit
-Click on "Edit Session Rules" in the upper left of the screen
-If there is a "Quick Drive Rule" in the list click on it and then click "Edit" at the bottom of the window
-If there is no "Quick Drive Rule", click "Add" at the bottom of the window and find it in the list, highlight it and add it to the rules.
-With the "Quick Drive Rule" open for edit, find "Set time to XX:XX" where the X's are a time (hour and minutes) for the session start
-After changing the time (and anything else you like to in the Quick Drive Rule), click on the check mark to save your changes
-Close the Session Rules window by clicking the check mark (if you don't want to save any of your changes then click the "x" instead)
-Save the session
-Drive the session to check your changes, particularly noting the start time in the upper right of the screen
I've change the start time in my series of sessions ( as and example the LotBN V2 series of four) to give the sense of telling a story. Kind of wouldn't make sense to have the chapters of a story start at the same time when they are obviously sequencial.
Anyway, hope this helps.
Take care,