So BT IS 9 days. I've checked to confirm with my own character as well
Why the hell were people calling me crazy?
People really shouldn't go around saying people are wrong without actually looking it up...
Interesting, harvest should not be 9 days on any island so far as I know. Sa basically it looks like BT has been bugged for quite some time and people have just put up with it? They were calling you crazy cause they knew the way it SHOULD work and might not have a character on BT to know that the continent appears to be bugged.