I have an issue with MS Project 2016.

I have a task which starts on May 9th and is estimated to 72 hrs. I have assigned a resource, which is available 4 hours per day (I assigned the resource using his own calendar where his availability is set). The task type is Fixed work and it's effort driven. The duration is 18 days, and there are just just 3 working days marked as non-working.

And yet, MS Project calculates the finish date to be July 7th (40 working days after May 9th).

I'd appreciate any suggestions as to what may be wrong.

  • What are you expecting the finish date to be?
    – Sarov
    Commented Jan 13, 2017 at 14:24
  • I expect the task to finish on June 1st. 72hr/4 hrs per day = 18 days. Thanks in advance!
    – Diana
    Commented Jan 13, 2017 at 17:57

1 Answer 1


I think I figured it out.

In the respective resource calendar -> work weeks -> details the time for the allocated resource was set to:

08:00 AM - 10:00 AM 11:AM - 1:00 PM

I changed that to:

08:00 AM - 10:00 AM 1:00 PM - 3:PM

And project recalculated the duration correctly.

I have no idea what was wrong with the time which was set initially.

  • have you test it ? i have the same oroblem
    – AED
    Commented May 15, 2017 at 1:26

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