FIRST_HOUR
hour = tm->tm_hour -FIRST_HOUR;
otzhour = otztm.tm_hour -FIRST_HOUR;
#define HOUR_COUNT (LAST_HOUR - FIRST_HOUR + 1)
bit_nset(e->hour, 0, (LAST_HOUR-FIRST_HOUR+1));
bit_nset(e->hour, 0, (LAST_HOUR-FIRST_HOUR+1));
bit_nset(e->hour, 0, (LAST_HOUR-FIRST_HOUR+1));
ch = get_list(e->hour, FIRST_HOUR, LAST_HOUR,