This bill establishes the official standard time for the state of South Dakota, aligning it with the time set forth in 15 U.S.C. 261, effective January 1, 2025, for both the central and mountain time zones. It also includes a provision that exempts the state and its political subdivisions from the requirement to advance standard time by one hour during the specified period in 15 U.S.C. 260a(a). This exemption applies to areas of the state observing both central and mountain standard time.

Additionally, the bill clarifies that the new standard time regulations will not interfere with existing federal laws regarding the time for common carriers engaged in interstate commerce or the timing of actions required by U.S. officials or agencies. This ensures that federal operations and regulations remain unaffected by the changes in state timekeeping practices.