As a private pilot, you fly non-commercially in good weather. You can ad on an Instrument Rating to be able to fly in all kinds of weather. There are no geographical restrictions, the license is valid throughout the world.
As an aspiring pilot you take a theory lessons and practical flying lessons led by a flight instructors. Theory is held on weekends for about 5 - 6 months. During the theory period you normally fly about half of the flying lessons, one or two per week, thereafter you can finish the remaining flight hours fairly quickly.
PPL is the first module toward a Commercial Pilot License or Airline Pilot License, if this is your goal.
6 - 7 months