Excel Date Formula

Hello,
what is the formula to get the first date of the month of May and last date of the month of April.

CELL"X1"
IF Date < May 1st (Current Year) , then Cell "X1" = May 1st (Last year)
IF Date > = May 1st (Current Year) , then Cell "X1" = May 1st (current year)

CELL"Y1"
IF Date < = April 30th (Current Year) , then Cell "Y1" = April 30th (current year)
IF Date > April 30th (Current Year) , then Cell "Y1" = April 30th (Next year)

Example,
today is April 30th 2015,
I need to have Cell "X1" = May 1st 2014
I need to have Cell "y1" = April 30th 2015

Tomorrow is MAY 1st 2015
I need to have Cell "X1" = May 1st 2015
I need to have Cell "y1" = April 30th 2016

Any help is appreciated.
Thanks
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Microsoft Excel ExpertCommented:
Book1.xlsx

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Microsoft Excel ExpertCommented:
For X1   here is the formula  =IF(today()<DATE(YEAR(TODAY()),5,1),DATE(YEAR(TODAY())-1,5,1),IF(today()>=DATE(YEAR(TODAY()),5,1),DATE(YEAR(TODAY()),5,1)))

For Y1    here is the formula   =IF(today()<=DATE(YEAR(TODAY()),4,30),DATE(YEAR(TODAY()),4,30),IF(today()>DATE(YEAR(TODAY()),4,30),DATE(YEAR(TODAY())+1,4,30)))

becuase today is today is today is April 30th 2015,
Cell "X1" = May 1st 2014
Cell "y1" = April 30th 2015

when you open workbook tomorrow, the cells would be then changed automatically to

Cell "Xn 1" = May 1st 2015
Cell "y1" = April 30th 2016
Author Commented:
Thank you
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