Subtracting months from a date

B

bruty

Active Member
Joined
Jul 25, 2007
Messages
456
Office Version
  1. 365
Platform
  1. Windows
If I have a date in Cell A1, what formula do I need to put in cell B1 to subtract 6 months.

eg If A1 = 14/08/2007 I want B1 to read 14/02/2007 and not 12/02/2007 which it reads when subtracting half a ywears worth of days
 
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Try this one (not fully tested so just a guess!!)
Code: 
=IF(DAY(A1)<=28,DATE(YEAR(A1),MONTH(A1)-6,DAY(A1)),IF(MONTH(A1+1)<>MONTH(A1),DATE(YEAR(A1),MONTH(A1)-5,DAY(1))-1,IF(MONTH(DATE(YEAR(A1),MONTH(A1)-6,YEAR(A1)))<>MONTH(A1)-6,DATE(YEAR(A1),MONTH(A1)-5,DAY(1))-1,DATE(YEAR(A1),MONTH(A1)-6,DAY(A1)))))
 
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Excel Facts

Workdays for a market open Mon, Wed, Friday?
Yes! Use "0101011" for the weekend argument in NETWORKDAYS.INTL or WORKDAY.INTL. The 7 digits start on Monday. 1 means it is a weekend.
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