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Month Calculations

4 replies [Last post]
Fri, 2008-10-10 06:46
Mark Chapman
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Can someone tell me if MSP can calculate 3 months accurately? This is for TMA purposes.

I believe if you put "+3 mon" into a calculation, MSP will use what is defined in the calendar tab (options). In my case 20 days and that is wrong. So when I am using formula I am better off just saying 92 days and ignoring calendar calculations. Cheers, Mark
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Replies

Mon, 2008-10-13 09:14
#1
Mark Chapman
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cheers guys.

TMA = Traffic Management Act
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Mon, 2008-10-13 08:23
#2
Philip Kearney
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I agree with the below posters, Darren & Trevor.
Don’t complicate the schedule in trying to be smart as it usually gets smart back at you!

Are we talking 5 days or 7 day calenders?
If we are talking 7 day, then use "eday" for working weekends if you do not want to upset the 5 day calender but eday represents 24 hour working time! This is useful if you are measuring on work effort rather than cost as you would get away with "eday" work effort because eday would add to the cost!

Sometimes you got to manipulate the calenders a bit to suit the programme you want...however, if you are not sure, heed the advice at the start!

So use "hours" as time unit for work & "days" for durations for an efficient programme.
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Mon, 2008-10-13 07:16
#3
Darren Kosa
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Hi Mark,

I’d agree with Trevor. I never use Months, Weeks or Minutes as a Duration unit and very rarely use hours.

I do, however, use hours as the time unit for Work.

Regards,

Darren
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Fri, 2008-10-10 20:01
#4
Trevor Rabey
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Joined: 29 Nov 2005
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What’s TMA?
You answered your own question. You are better off using Days as durations.
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