SetFileTime

#include "stdafx.h"
#include <windows.h> 
#include <string> 
#include <ctime> 

int settime(LPCSTR filename)
{
    SYSTEMTIME  systime;
    FILETIME ft, ftUTC;
	HANDLE hFile;

    systime.wYear = 2000;
    systime.wMonth = 1;
    systime.wDay = 1;
    systime.wDayOfWeek = 1;
    systime.wSecond = 1;
    systime.wHour = 1;
    systime.wMinute = 1;
    systime.wMilliseconds = 1;
	
    SystemTimeToFileTime(&systime,&ft);
	LocalFileTimeToFileTime(&ft, &ftUTC);
	hFile =  CreateFileA(filename,GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ| FILE_SHARE_WRITE ,
		NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
    if (hFile != INVALID_HANDLE_VALUE)
    {
        SetFileTime(hFile,(LPFILETIME) NULL, (LPFILETIME) NULL,&ftUTC);
	}
    CloseHandle(hFile);

	return 0;
}
 
int main(int argc,char* argv[])
{
    settime("12.txt");
    return 0;
}