xtm
struct rtc_time xtm;
xtm = *tm;
xtm.tm_year -= rtc_epoch - 1900;
tm = &xtm;
static void localtime_3(struct xtm *r, time64_t time)
struct xtm current_time;
static inline unsigned int localtime_1(struct xtm *r, time64_t time)
static inline void localtime_2(struct xtm *r, time64_t time)