The Apollo_Time of 1970-01-01 00:00 UTC, the zero of the Unix clock.
ct := to_calendar(APOLLO_TIME_FOR_JAN_1_1970);
assert(ct.year == 1970 && ct.month_starting_at_0 == 0 && ct.day_of_month_starting_at_0 == 0);APOLLO_TIME_FOR_JAN_1_1970 :: Apollo_Time.{ low = 0xdbd87f0edb7c8000, high = 0x300 }