c언어 현재 날짜 및 시간 출력

# vi test.c

#include <stdio.h> #include <time.h> #include <sys/timeb.h> #include <sys/time.h> int main () {         struct timeval tv;         struct timezone tz;         struct tm *tm;         gettimeofday(&tv, &tz);         tm = localtime(&tv.tv_sec);         printf("%04d-%02d-%02d %02d:%02d:%02d.%06d\n", tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, tv.tv_usec);         return 0; }

# gcc test.c -o test

# ./test

2020-09-14 11:10:59.496912