Date/Time confusion?

Hi,

Need som help with a Date/Time problem.
I've read page up and page down about different ways to determine the date and time in a function. But I get very confused because which way should I use? Which one can you recommand for me to use?

I need to determine the time and date. So I can write it to a file with some other stuff i need to remember.

The file creation and inputting is no problem though. :)

Thx in advance.

Here's a simple example.

Code:

---

#include <ctime>
#include <iostream>
using namespace std;

int main()
{
  time_t now = time(NULL);
  tm *t = localtime(&now);
  cout << t->tm_mon+1 << endl;
  cout << t->tm_mday << endl;
  cout << t->tm_year+1900 << endl;
  cout << t->tm_hour << endl;
  cout << t->tm_min << endl;
  cout << t->tm_sec << endl;

  return 0;
}

---

What's the return type? Int?