78th Session of the UN General Assembly (UNGA 78) This event has expired The 78th session of the UN General Assembly (UNGA 78) will open on Tuesday, 5 September 2023. The first day of the high-level General Debate will be Tuesday, 19 September 2023 For more information click here Start Time 12:00 am September 5, 2023 Finish Time 12:00 am September 19, 2023 Address New York City, US Share: