Visiting pune to explore the city.

Hi I am coming to pune this Thursday. How many days are enough to see all the attractions in the city. And I would also be travelling to nearby places like lonavala and other places too. So can you suggest me how many days should i plan for just the city and the places in close proximity (like 2-3 hrs away). And places which I should NOT miss in the city. I think i will be able to cover 3 places in one day. If i will start my morning like 9:00am till 10:00pm