KEIL MDK 中gmtime函数使用方法

 1 void unixtime_to_date(uint32_t unixtime, struct date *date)
 2 {
 3     uint32_t t = unixtime + 28800;    //北京时间是东8区，时间戳要加8小时
 4     struct tm *t_tm;
 5 
 6     t_tm = localtime(&t);
 7     date->year   = tm->tm_year + 1900;
 8     date->month  = tm->tm_mon + 1;
 9     date->day    = tm->tm_mday;
10     date->hour   = tm->tm_hour;
11     date->minute = tm->tm_min;
12     date->second = tm->tm_sec;
13 }