I created a task in MS Project 2010 which starts on 14-Oct-2011 and has a duration of one day.
Project automatically sets the Finish Date to 17-Oct-2011 (because the 15th and 16th are weekend non-working days).
However my task will really finish on the same day i.e. 14-Oct-2011, but when I set the Finish Date to 14-Oct-2011 MS Project shows the task as having a duration of 0.88 days which is wrong:
Why is this and is there a way around it?
Updated:
Had a fiddle around with the Default start/end time values in File -> Options -> Schedule page. I changed from 0800/1700 to 0900/1800.
I then changed the project's Working Time (Project -> Working Time) [Default] working time for the week from:
Monday to Friday: 08:00 to 12:00 and 13:00 to 17:00
to
Monday to Friday: 09:00 to 17:00
I'm not sure why this works because the number of working hours (8) per working day hasn't actually changed.
Best Answer
In MS Project's configuration, when does your day start and end? 0.875 days is 21 hours.
Try making the task "8 hours" long instead of "1 day" long. If a "1 day" task starts at 9:00am, it finishes at 9:00am the next working day.