September 21, 2025 Holidays and Observances

September Holidays
DateWeekdayEventCountryType
21 SepSundayIndependence Day
Public
21 SepSundayDay of the Walloon Region

Belgium

Not public
21 SepSundayFederal Day of Thanksgiving, Repentance and Prayer

Switzerland

Public
21 SepSundayKwame Nkrumah Memorial Day

Ghana

Public
21 SepSundayCustoms Service Day

Poland

Not public
21 SepSundayInternational Day of Peace
global
Other