As previously announced in the CME Reference Data API Notices effective August 25, CME Globex Trading Hours and Holiday Schedules for futures and options are now available via CME Reference Data API and CME Reference Data Warehouse. 

Clients now have the ability to programmatically integrate CME Globex Trading Hours and Holiday Schedules for futures and options products into their referential data systems.

Please Note: Clients should not expect the JSON messages returned in the New Release and Production environments to align; and should consider the production data as accurate.