date to week number of the year

jamielill

Active Member
Joined
Jul 27, 2009
Messages
286
I want to find the week of the year were this lands

If i have a date that could be

june/31/2012 or

jun/1/2012

would it be best to extract the text from the left end of the date

match it to a month 1 to 12

extract the 6 & 7th character from the right of the date
match it to the day of the week

the use Chips formula for week of the year.

or am I over complicating things to much

Is there an excel command that does this in 2003
 

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There is a function called Weeknum

Assuming the date in A1 is a real date, not just a text string that looks like a date.
=WEEKNUM(A1)

This does require the analysis toolpack from Tools - Addins.
 
Upvote 0
Try

=WEEKNUM(REPLACE(A1,1,FIND("/",A1)-1,MONTH(LEFT(A1,FIND("/",A1)-1)&1)))
 
Upvote 0
FYI, you don't need to coerce the substitute to number with 1*
Weeknum does it for you.
Thanks for noting that. I needed the coercion in my test to force the date, then I simply wrapped it with the WEEKNUM function... I didn't even think to try removing the coercion after doing that.
 
Upvote 0
Thanks guys
I was going to us vlookup & mid and replace the text with a number then lookup the number of the week
 
Upvote 0

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