神秘的time_t，世界终止的一刻

time.h time_t

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

int main()
{
time_t biggest = 0x7fffffff;
//ctime将参数转换为当地时间
printf("native biggest = %s \n", ctime(&biggest));
//gmtime将参数转换为UTC时间，即世界统一时间，并不返回可打印的字符串
//使用asctime将其转化为可打印的字符串
printf("UTC biggest = %s \n", asctime(gmtime(&biggest)));

return 0;
}

Reference