/* Ermitteln von Zeiten */
/* pmktime1.c */
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
void settime(struct tm *tp,int j,int mo,
	int mt,int h,int m,int s)
{
tp->tm_year = j - 1900;
tp->tm_mon  = mo -1;
tp->tm_mday = mt;
tp->tm_hour = h;
tp->tm_min  = m;
tp->tm_sec  = s;
}
/* Welcher Wochentag ist der 4.7.2001 ? */
int main ()
{
struct tm z;
time_t zeit;
settime (&z, 2001,7,4,0,0,0);
zeit = mktime(&z);
if (zeit == -1)
  printf ("\nKeine Wandlung m”glich.\n"), exit (2);
printf ("\nWochentag (So = 0) = %d",z.tm_wday);
return 0;
}