Get the current time in C

Question

I want to get the current time of my system. For that I'm using the following code in C:

time_t now; struct tm *mytime = localtime(&now);  if ( strftime(buffer, sizeof buffer, "%X", mytime) ) {     printf("time1 = \"%s\"\n", buffer); } 

The problem is that this code is giving some random time. Also, the random time is different everytime. I want the current time of my system.

Answer 1

Copy-pasted from here:

/* localtime example */ #include <stdio.h> #include <time.h>  int main () {   time_t rawtime;   struct tm * timeinfo;    time ( &rawtime );   timeinfo = localtime ( &rawtime );   printf ( "Current local time and date: %s", asctime (timeinfo) );      return 0; } 

(just add void to the main() arguments list in order for this to work in C)

Answer 2

Initialize your now variable.

time_t now = time(0); // Get the system time 

The localtime function is used to convert the time value in the passed time_t to a struct tm, it doesn't actually retrieve the system time.