struct timeval tv;
struct timezone tz;
struct tm *tm;
gettimeofday(&tv, &tz);
tm=localtime(&tv.tv_sec);
printf(" %d:%02d:%02d %d \n", tm->tm_hour, tm->tm_min,
    tm->tm_sec, tv.tv_usec);

$ cat milli.c

#include <stdlib.h>
#include <sys/time.h>

struct timeval tv;
struct timezone tz;
struct tm *tm;
gettimeofday(&tv, &tz);
tm=localtime(&tv.tv_sec);
printf(" %d:%02d:%02d %d \n", tm->tm_hour, tm->tm_min
,m->tm_sec, tv.tv_usec);


$ gcc milli.c
milli.c:7: parse error before '&' token
milli.c:7: warning: data definition has no type or storage class
milli.c:8: conflicting types for `tm'
milli.c:6: previous declaration of `tm'
milli.c:8: warning: initialization makes integer from pointer without a cast
milli.c:8: initializer element is not constant
milli.c:8: warning: data definition has no type or storage class
milli.c:9: parse error before string constant
milli.c:10: warning: conflicting types for built-in function `printf'
milli.c:10: warning: data definition has no type or storage class

#include <stdlib.h>
#include <sys/time.h>
main()
{
     struct timeval tv;
     struct timezone tz;
     struct tm *tm;
     gettimeofday(&tv, &tz);
     tm=localtime(&tv.tv_sec);
     printf(" %d:%02d:%02d %d \n", tm->tm_hour, tm->tm_min,
              m->tm_sec, tv.tv_usec);
     exit(0);
}