The current hours for the Chicago Board of Trade are:

     Monday trading begins with the Electronic Trading on Sunday at 7:00 p.m. and goes until Monday morning at 7:45 a.m.  Then the Chicago Board of Trade reopens with both electronic and pit trading sessions from 8:30 a.m. till 1:15 p.m.

      As for grain offers, Hedge-to-Arrive Offers (HTA’s), that are in 5000 bushel increments and can be hedged, will be filled on either the Pit or Electronic Trading sessions. Hedge-to-Arrive offers and all flat price offers that are not in 5,000 bushel increments may only be filled from the hours of 8:30 a.m. to 1:15 p.m.