How to display the date in other colors when excel makes a perpetual calendar?

Select the cell on 1 day (such as A 1), select Format-Conditional Format on the menu bar, select the formula in Condition 1, enter =A 1=TODAY () next to it, and then click Format to select the required content.

Supplement: How to set it up? I've tried many times, no problem. Why didn't you say hello to me? By the way, what is the format of your "perpetual calendar" date? I said the standard date format, such as "2009-11-1".