آپ لوگوں سے گزارش ھے کے میری مدد کریں


Code:
#include <iostream>
#include <windows.h>

using namespace std;

int main()
{
int sec = 0;
int min = 0;
int hour = 0;
for(sec=0; sec<1000+1; sec+=1)
{
system("CLS");
cout << hour << ":"<< min << ":" << sec << endl;
Sleep(1000);
if (sec == 60);
{
   sec = 0;
   ++min;
      }
if (min == 60);
{
      min = 0;
      ++hour;
      }

}
  getchar();
return 0;
}
This is a code for a clock but it went wrong plz help