S.D. Codified Laws § 13-26-1
The school fiscal year shall begin July first and end June thirtieth. Each local school board shall set the number of days in a school term, the length of a school day, and the number of school days in a school week. The local school board or governing body shall establish the number of hours in the school term for kindergarten programs, which may not be less than four hundred thirty-seven and one-half hours. The number of hours in the school term for grades one through five may not be less than eight hundred seventy-five hours, exclusive of intermissions. The number of hours in the school term for grades six through twelve may not be less than nine hundred sixty-two and one-half hours, exclusive of intermissions. An intermission is the time when students are at recess or lunch and for grades six through twelve, the passing time between classes.
The minimum number of hours required in this section may be waived by the secretary if the Governor or the President of the United States declares a state of emergency and the affected school is located within the area to which the state of emergency is applicable. The Department of Education shall monitor emergency-related school closures and provide updates to the schools.
During a declared state of emergency, the school district shall forward to the Department of Education, at the time and in the manner requested by the department, a record of the continuous instruction provided to the students. The department shall consider the nature and scope of the instruction provided to determine whether it will count towards the minimum number of hours required in a school term.
SDCL 13-26-1