SECS_PER_HOUR
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
*hourp = rem / SECS_PER_HOUR;
rem %= SECS_PER_HOUR;
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
second += (time >> 11) * SECS_PER_HOUR;
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
result->tm_hour = rem / SECS_PER_HOUR;
rem %= SECS_PER_HOUR;