this means that Feb1 2004 is a Sunday..

Now, notice that, every leap year, Feb1 moves 2 days backward from the present leap year to the next leap year.

Since the number of days in a week is 7, it will need 7 leap years from 2004 so that Feb1 occurs on a Sunday again.

so, 7 times 4 = 28 years, therefore the next year that Feb has 5 Sundays will be on 2032.