This has confused me for a while. In my latest example, I have a task with an As Soon As Possible constraint. That gives it a start date of April 25, 2023. I input a duration of 6 months. The way I count, that means it should finish on October 25, 2023, but Workfront calculated October 9, 2023.
Any ideas what's going on? The only thing I can come up with is Workfront is calculating 6 x (4 weeks) instead of 6 months by calendar date.