Where the last 8 p.m. sunset of 2026 has already happened, and which cities are next

St. Louis has officially experienced its final 8 p.m. sunset of 2026, marking the beginning of a period where days are getting shorter. This astronomical shift is progressing across various regions, with several other cities and specific locations within California expected to reach their last 8 p.m. sunset next. The transition reflects the seasonal change in daylight hours as the year progresses, affecting different geographical coordinates at different times throughout the United States.