C program to print current time in hrs, mins , secs and "Milliseconds"

C program to print current time in hrs, mins , secs and "Milliseconds"

Neelkanth_98$ cat time.c

#include <stdio.h>

#include <sys/time.h>

#include <time.h>

#include <math.h>

int main() {

    char buffer[26];

    int millisec;

    struct tm* tm_info;

    struct timeval tv;

    gettimeofday(&tv, NULL);

    millisec = lrint(tv.tv_usec/1000.0); // Round to nearest millisec

    if (millisec>=1000) { // Allow for rounding up to nearest second

        millisec -=1000;

        tv.tv_sec++;

    }

    tm_info = localtime(&tv.tv_sec);

    strftime(buffer, 26, "%Y:%m:%d %H:%M:%S", tm_info);

    printf("current Time: %s.%03d\n", buffer, millisec);

    return 0;

}

Output

Neelkanth_98$ ./a.out

current Time: 2017:12:19 18:07:51.588

Neelkanth_98$ date

Tue Dec 19 18:07:52 IST 2017