The BOJ do not have a firmly scheduled time for their policy statement. Some time 0230 to 0330 GMT is usually a good expectation.
Which is any time now!
Yesterday the Bank was aggressively into the JGB market to drive yields off recent highs. This is not a sign of a Bank ready to relent on its ultra-easy policy settings yet.
No change to policy is the near unanimous expectation. So if you like surprises, there's a chance (its very, very slim, but still).