S.D. Codified Laws § 8-3-1
The citizens of each organized civil township qualified to vote at general elections shall annually assemble and hold a township meeting on the first Tuesday of March. The township board of supervisors shall by resolution establish the location where the annual township meeting shall be held. The location of the annual meeting shall be in the county where the township is located. Notice of the time and place of such township meeting shall be given by the publication thereof for three consecutive days in a daily, or for two consecutive weeks in a weekly newspaper of general circulation in the township beginning not less than twelve calendar days prior to such meeting. In case of inclement weather, any required township meeting may be rescheduled for the following Tuesday at the same place and location without additional publication in the newspaper and meeting requirements provided in § 1-25-1.1. If the board of supervisors requires nominating petitions pursuant to § 8-3-1.1, the notice required by this section shall include the names and the office they seek of those who have filed nominating petitions pursuant to § 8-3-1.2.
SDCL 8-3-1