POSIX_BASE_YEAR
KASSERT(ct.year >= POSIX_BASE_YEAR, ("invalid clocktime year %d",
if (error || ct.year < POSIX_BASE_YEAR) {
ct.year += POSIX_BASE_YEAR;
RTC_WRITE4(rtc_sc, RTC_ALARM2_YEARS, TOBCD(ct.year - POSIX_BASE_YEAR));
i = POSIX_BASE_YEAR;
year = POSIX_BASE_YEAR;
sc->year_offset = POSIX_BASE_YEAR;