Getting Date and Time in C++ on Windows

The program example below shows three aproaches to get the date and time. MSDN references are embedded in the program.

#include<iostream>
#include<time.h> //For approach1 and approach3
#include <Windows.h> //For approach 2

using namespace std;

void approach1(void)
{
  char dateStr [9];
  char timeStr [9];
  //http://msdn.microsoft.com/en-us/library/585kfedd(VS.80).aspx
  _strdate_s( dateStr);
  //http://msdn.microsoft.com/en-us/library/yb2bth04(VS.80).aspx
  _strtime_s( timeStr );
  cout<<"\nApproach 1"<<endl;
  cout<<"Current date is: "<<dateStr<<endl;
  cout<<"Current time is: "<<timeStr<<endl;
}

void approach2(void)
{
  SYSTEMTIME systemTime;
  //http://msdn.microsoft.com/en-us/library/ms724390(VS.85).aspx
  GetSystemTime(&systemTime);
  cout<<"\nApproach 2"<<endl;
  cout<<"Current date is: "<<systemTime.wMonth<<"/"<<systemTime.wDay<<"/"<<systemTime.wYear<<endl;
  cout<<"Current time is: "<<systemTime.wHour<<":"<<systemTime.wMinute<<":"<<systemTime.wSecond<<endl;
}

void approach3(void)
{
  //http://www.daniweb.com/forums/thread64803.html
  char buffer[BUFSIZ] = { '\0' } ;    
  time_t now = time( &now ) ;
  struct tm local_time; 
  //http://msdn.microsoft.com/en-us/library/a442x3ye(VS.80).aspx
  localtime_s( &local_time, &now ) ;
  cout<<"\nApproach 3"<<endl;
  //http://msdn.microsoft.com/en-us/library/fe06s4ak(VS.71).aspx
  strftime( buffer, BUFSIZ, "%m/%d/%Y", &local_time ) ;    
  cout<<"Current date is: "<< buffer << endl ;
  strftime( buffer, BUFSIZ, "%H:%M:%S", &local_time ) ;
  cout<<"Current time is: "<< buffer << endl ;
}

int main()
{
  approach1();
  approach2();
  approach3();
  return 0;
}

The output is as follows: