On a new year day, two old friends John and Jacob meet at a party. As they met after a long time Jacob wanted John to guess his birthday. As both friends are not in touch for a long time John was unable to guess his birthday. So Jacob decided to give some hints. Below are the hints:
The day before yesterday I was 30 and next year I will be 33, then Jacob asked John to find his birthday.
Hint: The above condition can be true for only one day in the year