Add weeks to a date

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UsulArrakis Posted messages 7683 Status Contributeur -  
UsulArrakis Posted messages 7683 Status Contributeur -
Hello,
Excel 2010
I would like to add 6 weeks to a date to obtain the new date.
The YEAR, MONTH, or DAY functions exist in Excel but not WEEK

Does anyone have an idea, preferably with a formula, or otherwise with a macro?

Thank you

Configuration: Win XP pro

(_Usul d'Arrakis
Serial_Dreamer_)

3 réponses

michel_m Posted messages 18903 Registration date   Status Contributeur Last intervention   3 320
 
Hello,
Your date in A1, the number of weeks in B1

=A1+(B1*7)
Wednesday 12/6/13 in A1 gives Wednesday 27/7/13

Best regards

--
Michel
4
Mike-31 Posted messages 18405 Registration date   Status Contributeur Last intervention   5 145
 
Hi,

this amounts to adding days,
1 week = 7 days
6 weeks x 7 days = 42 days

so date + 42

or more technically
=DATE(YEAR(A1);MONTH(A1);DAY(A1)+42)

except that you haven't mentioned everything and taking into account business days and public holidays
--
See you +
Mike-31

A period of failure is a perfect time to plant the seeds of knowledge.
0
UsulArrakis Posted messages 7683 Status Contributeur 3 196
 
Either I'm an idiot or you can tell it's Friday and I'm tired from my work week! :-DDD

Actually, I just needed D2*7, how foolish of me!!!

A big thank you to both of you

I'm mixing your solutions in my file:
=DATE(YEAR(A2)+B2;MONTH(A2)+C2;DAY(A2)+E2+(D2*7))
and
=DATE(YEAR(A2)-B2;MONTH(A2)-C2;DAY(A2)-E2-(D2*7))

--

(_Usul from Arrakis
Serial_Dreamer_)
0
michel_m Posted messages 18903 Registration date   Status Contributeur Last intervention   3 320
 
Was my formula too simple?
0
UsulArrakis Posted messages 7683 Status Contributeur 3 196
 
no no, it's very good
but I already had the formula with year month day
so I'm adding a cell where we can enter the number of weeks
and I adapted my previous formulas by adding D2*7 (which corresponds to your B1*7)

thanks again and have a nice weekend
0