The stock exchanges in the USA will be closed on New Year's Eve. So today at 8:20 p.m., the CBoT will end its trading in agricultural derivatives and will start again on Monday, January 3rd, 2022.
The Paris Matif will only be trading for half a day tomorrow. Trading in agricultural futures starts at 10:40 a.m. and then ends at 2 p.m.
Source
Hansa Terminhandel GmbH