Thanks for your Helpful reply
appreciated. but unfortunately it don't solve my problem
.. might be i am unable to explain my problem clearly..
i am trying to apply formula on "Conditional formatting" on the dates of joining to highlight the those date which has completed 1 year cycle for Salary increment. And our company follow some rules for salary increment.
Our Salary increment dates which starts from (1st to 14th) of its given month and (15th to 31th) its previous month, i.e If we are playing salary of the October month then those employees salary increment will be added who were appointed on "1st to 14th" October and "15th to 31th" its previous month (September) and this same will continue with the next coming month.
The problem i am facing is with the Conditional formatting formula which i m applying to picks the month and year from my given cell in sheet NOT from my system (computer)
=AND(DATE(YEAR(TODAY()),MONTH(C12),DAY(C12))>=DATE(YEAR(TODAY()),MONTH(TODAY())-1,15),DATE(YEAR(TODAY()),MONTH(C12),DAY(C12))<=DATE(YEAR(TODAY()),MONTH(TODAY()),14))
i have tried a lot on my own but cant figure it out 
any help will be highly appreciated
Best Regards
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