Back Цәыббрамза 11 Abkhazian 11 September Afrikaans 11. September ALS Сыгын айдыҥ 11 кӱни ALT 11 September Amharic 11 de setiembre AN 11 سبتمبر Arabic 11 شتنبر ARY 11 سبتمبر ARZ ১১ ছেপ্টেম্বৰ Assamese
September 11 is the 254th day of the year (255th in leap years) in the Gregorian calendar. There are 111 days remaining until the end of the year.
The terms "September 11" and "9/11" have been used by the media to refer to the September 11, 2001 attacks on the World Trade Center and The Pentagon in the United States of America.