#include <stdio.h>
#include <time.h>

static int is_duty_time()
{
  time_t t0 = time(NULL);
  struct tm *lt = localtime(&t0);
  printf("Now: %d-%d-%d %d:%d:%d\n", 
    lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, 
    lt->tm_hour, lt->tm_min, lt->tm_sec);
  int wday = lt->tm_wday;
  int hour = lt->tm_hour;
  if ((wday >= 1 && wday <= 5) && (hour >= 8 && hour <= 18)) {
    return 1;
  }

  return 0;
}


int main(int argc, char *argv[])
{
  int res = is_duty_time();
  printf("res: %d\n", res);
  
  return 0;
}