Conditional Formatting - Change Cell Color Based On Date In Another Cell

I have two columns. In column B is the date of "last check". I column A is the date of "next check". I would like to have cell A2 in yellow color 334 days after the date entered in cell A3 and than in red color 365 days after the date entered in cell A3. Same thing for cell B2 related to date entered in cell B3. Yellow color in cells announces that check will expire within 30 days and red color that check has been expired.