So you start at today’s date (13 October 2024) and just count backwards from it day by day.
You can use any date format you want but if you’re using numbers to display the date please specify which date format it is unless if the day is at least higher than 12 (13/10/2024) or if the day and month are the same (11/11/2024) then you don’t have to because you can just tell what the date is already.
Also shortening the year from "2024" to "24" is not allowed.