If you want to retrieve the current system date and time (and you are on a windows system), you could use the GetLocalTime function.

Here is an example:

SYSTEMTIME time;
 
 GetLocalTime (&time);

The SYSTEMTIME structure represents a date and time using individual members for the month, day, year, weekday, hour, minute, second, and millisecond.

typedef struct _SYSTEMTIME {  // st 
     WORD wYear; 
     WORD wMonth; 
     WORD wDayOfWeek; 
     WORD wDay; 
     WORD wHour; 
     WORD wMinute; 
     WORD wSecond; 
     WORD wMilliseconds; 
 } SYSTEMTIME; 

Other option, that will work on non-windows systems is to use the functions from time.h

Example:

#include <time.h>
 
 void main( int argc, char *argv[]  )
 {
 	time_t t;
 	time(&t);
 ...
 ...
 }