//en.cppreference.com/w/c/thread/thrd_sleep.html
#include <threads.h>
#include <time.h>
#include <stdio.h>
int main(void)
{
printf("Time: %s", ctime(&(time_t){time(NULL)}));
thrd_sleep(&(struct timespec){.tv_sec=1}, NULL); // sleep 1 sec
printf("Time: %s", ctime(&(time_t){time(NULL)}));
}