Originally Posted by
fransknorge
In theory that should be on the old. In practice do not count on it to happen 100%, if you needs flight to count for a period make sure this is 48-72 hours before the expiration date. Doing it the same day is uncertain and if it posts on the wrong period you will have a lot of trouble trying to get it right.
in this case I want it for the new period so the most certain case would be 10.9 in my case ofc.