timezone.c

来自「本代码是《C／C++程序员实用大全》的配套代码。网络转载」· C语言 代码 · 共 11 行

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

void main(void)
 {
   tzset();
   printf("Difference between local and GMT is %d hours\n",
     timezone / 3600);
 }