Kabir tears off one leaf a day from his desk calendar. What did the leaf show exactly one week before the one below?

One week earlier is 7 days back, so the weekday stays Friday. Going back 7 days from 1 March: February 2030 has 28 days, so it is 22 February. (23 February forgets that February ends on the 28th; 28 February is only one day back.)