Thread: time_t doing not what i expect

what im trying to do is store the time & date into a string..

Code:

string timeformat;
time_t x;
tm * time_;
time(&x); // get current time_t value
time_ = localtime(&x);
cout << time_->tm_mday << endl;    //here it prints out the right thing..

timeformat = time_->tm_mday;  
// here it doesnt do what i want it to do. here timeformat = "";

??