Say your dates start in B1 and go to B100.
Select B1, then select conditional formatting
- New Rule
- Use a formula to determine which cells to format
.
For the highlight green example formula, use:
=DATEDIF($B1,NOW(),"d")<1035
Hit the format... button and fill to corresponding color.
Hit "OK"
Then in the manage rules
menu, in the Applies To
column, enter the range of cells you want that to apply to. i.e. =$B$1:$B$100
For the highlight orange example formula, use:
=AND(DATEDIF($B1,NOW(),"d")>1035,DATEDIF($B1,NOW(),"d")<1095)
For highlight red example formula, use:
=DATEDIF($B1,NOW(),"d")>1095