Md. Code, Business Regulation § 11–829

Except for betting on races of national or international prominence which have been approved by the Commission, satellite simulcast betting may not be conducted:

(1) on any day other than Sunday between 1:30 a.m. and 10:00 a.m.; and

(2) between 1:30 a.m. and 11:00 a.m. on Sunday.