Hi @Charlotte Moss ,
Select the range you need to apply Conditional Formatting- go to Home- Conditional Formatting- New Rule...- Use a formula to determine which cells to format- enter the formula and set the cell format:
Green: =TODAY()-A1<335
Amber: =AND(TODAY()-A1<365,TODAY()-A1>=335)
Red: =TODAY()-A1>=365
If my understanding is incorrect, please be a bit more precise to explain your requirement or you can upload a screenshot so that I can get more accurate solutions to this problem. I’m glad to help and follow up your reply.
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.