On OrchidWiz it says - for greenpod harvesting - 217 days.
Maturation does seem to depend a lot on your own cultural conditions; there is no other explanation for such vast discrepancies. I had a cernua that was supposed to take 170-200 days for green podding per OrchidWiz and AOS, but took 70 days to dehisce.
Best to watch for colour change on the pod from round about now.