S.D. Codified Laws § 42-7-64
Each license issued under the certificate system shall describe the place and track or race course at which the licensee may hold such meetings. The authority conferred in any one license shall be limited to the calendar year for which it is issued. Every license shall specify the number of days the licensed meet shall continue, the hours during which racing is to be conducted and the number of races to be held per day. Races authorized under this chapter may be held only between the hours of 9:00 a.m. and 12:00 midnight. For the purpose of simulcasting or satellite facilities, a race meeting is considered to be the period of time a licensee starts its simulcast racing until it ends its simulcast racing. The commission shall issue a license on the basis of a calendar year.
SDCL 42-7-64