Re: Duration calculation

I defined my working times as 7am to 5:30, 7 days a week. However, when i
change the date format to show times, it shows all tasks starting at 8am and
ending at 8am. There are no resources assigned. Additionally, when i try to
change the finish time to something else, the start time changes as well.
Thanks for helping me figure this out!
trevor

"Steve House" wrote:

What time does the task start on 7/21? What time does it end on 8/25? (Go
to the Tools/Options menu, the View tab, and select a date format that
displays the time as well as the date).

Remember that duration is always measured in minutes and fractions of a day
at either end can make the real duration slightly off from the number you
get counting dates on a calendar. For example, with a normal 8 hour workday
with working time of 8am to 5pm, a task that begins at 1pm on Monday and
finishes at noon on Wednesday has a 2 day duration, not 3 days as you might
expect if you simply looked at the dates - starting Mon and ending Wed - and
ignored the times. Each 8 hour interval is a day. Monday afternoon is 1/2
day, Tuesday is 1 full day, and Wednesday morning is the final half day,
giving from Monday apparently through Wednesday a total duration of 2 8-hour
days.
--
Steve House [Project MVP]
MS Project Trainer & Consultant
Visit http://www.mvps.org/project/faqs.htm for the FAQs


"trevor" <trevor@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0E19AD7B-98DC-44FA-9171-7E99ED84E372@xxxxxxxxxxxxxxxx
I checked to see if there were any non-working days in the change working
time and there were not. Still confused about it.
trevor

"JulieS" wrote:

Hello Trevor,

Well obviously, I was not thinking straight or something. Either too
much coffee or not enough. When I create a task with a start date of
July 21, 2007 at 8:00 am and enter a 35 day duration, I show August 24,
2007 at 5:00 pm as the finish date. A duration of 36 days gives me
August 25, 2007. Is it possible you have one nonworking day in between
those dates?

Sorry for any ealier confusion.

I hope this helps. Let us know how you get along.

Julie
Project MVP

Visit http://project.mvps.org/ for the FAQs and additional information
about Microsoft Project


"JulieS" <passport6847 at maine dot rr dot com> wrote in message
news:e1LNHxZxHHA.4076@xxxxxxxxxxxxxxxxxxxxxxx
Hello Trevor,

You have obviously modified the project calendar to allow every day
(Sunday through Saturday) as working time. What hours (8:00 am to
5:00 pm ?) do you have set? If you haven't modified the 8:00 am to
5:00 pm and haven't modified the definition of the number of hours in
a day from default (8 hours) then from July 21, 2007 8:00 am to August
25, 2007 5:00 pm *is* 35 eight hour time slots, thus 35 "days" not 36.

See FAQ #5 at http://project.mvps.org/faqs.htm for some additional
information.

I hope this helps. Let us know how you get along.

Julie
Project MVP

Visit http://project.mvps.org/ for the FAQs and additional information
about Microsoft Project


"trevor" <trevor@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:E0983075-0299-4A81-BBA8-296889C43208@xxxxxxxxxxxxxxxx
I have a schedule that spans from 7/21 to 8/25. Project is telling me
the
duration is 35 days, but when I count the days on the calandar, its
36 days.
I need the proper count to show.Thanks.







.

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