#include <stdio.h>
#include <sys/time.h>
#include <unistd.h>

int main()
{
  struct timeval now;

printf("Content-type: text/html
Pragma: no-cache
Cache-control: no-cache, private

");

  gettimeofday(&now, 0);

printf("%ld.%06ld\n", now.tv_sec, now.tv_usec);

return 0;
}