Project Schedule mode is from "start date."   All Task Constraints are ASAP.   The project planned start TIME is 8am and the Schedule attached to the project is 8am-5pm with a 1-hour break, for total of 8 hours.   In Setup, the Typical Hours per Work Day is 8 hours. 

Thank you for the reply! I should have mentioned, I have not assigned the tasks yet (because, yes, a user's schedule can cause this problem).    Also, it is the first two tasks in the timeline and their constraints are ASAP, so this is not an earlier task's constraint causing this.   The specific pr...

I am planning a new project: the Project Planned Start date/time is Jan 3 at 8am. The default schedule is 8am-5pm. The first task is 1-day duration: its planned start time is 8am however it's planned completion time is 4pm?? Why isn't is planned to complete at 5pm?  This is causing the second task t...