linux time.h

#include <iostream>
#include <time.h>
using namespace std;

int main() {

  char szBeginTime[32] ={0};
  time_t tmBeginTime = time(NULL);
  struct tm *tmNowBegin = localtime(&tmBeginTime);
  strftime(szBeginTime,32,"%Y-%m-%d %H:%M:%S",tmNowBegin);
  fprintf(stderr, "Connect Begin Time %s\n ", szBeginTime );