code: public TimeZone getTimeZone()
      {
          // If the TimeZone object is shared by other Calendar instances, then
          // create a clone.
          if (sharedZone) {
              zone = (TimeZone) zone.clone();
              sharedZone = false;
          }
          return zone;
      }
docs: Gets the time zone.
  
  @return the time zone object associated with this calendar.