如何区分两个linux时间戳

Question

我有两个linux时间戳开始时间和到期时间，我想在几小时，分钟之间区分这两个时间戳。

  

语言：目标C

     

“expire_time”：“1366927200”，“begin_time”：“1327532400”，

Answer 1

int beginTime = 1327532400;
int expireTime = 1366927200;
int diff = expireTime - beginTime;

#define SEC_PER_MIN 60
#define SEC_PER_HOUR (SEC_PER_MIN * 60)
#define SEC_PER_DAY (SEC_PER_HOUR * 24)

int days = diff / SEC_PER_DAY;
diff -= days * SEC_PER_DAY;
int hours = diff / SEC_PER_HOUR;
diff -= hours * SEC_PER_HOUR;
int minutes = diff / SEC_PER_MIN;
diff -= minutes * SEC_PER_MIN;
int seconds = diff;

NSLog(@"%d d, %d h, %d m and %d s.", days, hours, minutes, seconds);