As autumn deepens across the prairies, South Dakota experiences one of the most dramatic periods of daylight loss during the year. In early October, South Dakotans lose about 3 minutes of daylight each day, while by month's end, the daily loss slows slightly to around 2 minutes and 45 seconds. On Oct. 2nd in Sioux Falls, Sunrise is at 7:25 am and Sunset is at 7:05 pm. Similar patterns occur across the state, from Sioux Falls to Rapid City, as South Dakota sits at a latitude where seasonal changes in daylight are particularly pronounced. This rapid daylight loss affects more than just the clock, it influences everything from farming schedules to outdoor recreation.