Timeline of the September 11 attacks

The following timeline is a chronological list of all the major events leading up to, during, and immediately following the September 11 attacks against the United States in 2001, through the first anniversary of the attacks in 2002.

Planning

Day	Month	Year	Location	Notes
-	-	1992	Germany	Mohamed Atta arrives in Germany.
-	-	1994	Philippines	Planning on Operation Bojinka begins.
-	-	1995	Germany	Operation Bojinka foiled, Said Bahaji and Ramzi bin al-Shibh arrive in Germany.
-	-	1996	Germany	Marwan al-Shehhi and Ziad Jarrah arrive in Germany.
-	-	1997	Germany	Zakariyah Essabar arrives in Germany.
-	-	1998	Germany	Recruitment of terrorists in Germany starts.
-	-	1998	United States	Bill Clinton warned bin Laden preparing to hijack US aircraft' inside US.
-	-	1999	Hamburg, Germany	Hamburg cell is fully formed.
-	-	1999	Germany	German authorities monitors call to 9/11 hijacker al-Shehhi, shares information with CIA.
-	-	1999	Germany	Germans monitor call mentioning key al-Qaeda Hamburg cell members, including 9/11 hijacker Atta's full name and number.
-	-	1999		9/11 hijacker Jarrah has unofficial wedding; photograph later suggests German intelligence has informant.
-	-	1999		Three 9/11 hijackers obtain US visas.
-	-	1999		Hani Hanjour obtains pilot's license despite dubious skills.
-	-	1999	Germany	German intelligence records calls between 9/11 hijacker al-Shehhi and others linked to al-Qaeda.
-	-	1999	United States	President Clinton warned about al-Qaeda operatives living in US.
-	-	1999		Watch list importance is stressed but procedures are not followed.
-	-	1999	United States	NSA tells CIA about planned al-Qaeda summit involving future hijackers.
-	-	2000	Malaysia and United States	2000 al-Qaeda Summit in Malaysia, pilots head to the United States and attend flight training schools.
-	-			Saudi ambassador's wife gives funds that are possibly passed to 9/11 hijackers.
-	-	2001	United States	Remaining hijackers go to the United States, Zacarias Moussaoui goes to the United States and is arrested, other cell members flee Germany.

September 11, 2001

All times are in local time.

Time H:M:	Location	Notes
7:59	Logan International Airport, Boston, Massachusetts	American Airlines Flight 11 takes off from Boston Logan, bound for Los Angeles.
8:14	Logan International Airport, Boston, Massachusetts	United Airlines Flight 175 takes off from Boston Logan, also bound for Los Angeles.
8:14–8:18	United States airspace	Flight 11 is hijacked.
8:20	Washington Dulles International Airport, Dulles, Virginia	American Airlines Flight 77 takes off from Washington Dulles International Airport, also bound for Los Angeles.
8:42	Newark International Airport, Newark and Elizabeth, New Jersey	United Airlines Flight 93 takes off from Newark International Airport, bound for San Francisco International Airport.
8:42–8:46	United States airspace	Flight 175 is hijacked.
8:46:40	North Tower, World Trade Center, New York City, New York	Flight 11 crashes into the North Tower of the World Trade Center between the 93rd and 99th floors.
8:50–8:54	United States airspace	Flight 77 is hijacked.
9:03:02	South Tower, World Trade Center, New York City, New York	Flight 175 crashes into the South Tower of the World Trade Center between the 77th and 85th floors.
9:28	United States airspace	Flight 93 is hijacked.
9:37:46	The Pentagon, Arlington, Virginia	Flight 77 crashes into the western side of The Pentagon.
9:59:00	South Tower, World Trade Center, New York City, New York	The South Tower collapses.
10:03:11	Shanksville, Pennsylvania	Flight 93 crashes into a field in Shanksville, Pennsylvania.
10:28:25	North Tower, World Trade Center, New York City, New York	The North Tower collapses.

Rest of September

September 13: On the personal orders of Queen Elizabeth II, The "Star-Spangled Banner" is played during the Changing of the Guard at Buckingham Palace in London, marking the first time a foreign national anthem is played outside Buckingham Palace on an occasion other than a state visit. Russia observes a minute's silence. September 14 to September 21: Worldwide stock markets plummet. September 15: CIA director George Tenet presents the Worldwide Attack Matrix.September 20: George W. Bush announces that the US is at war.

October

October 1: Rudy Giuliani speaks to the United Nations General Assembly.October 7: U.S. attack on Afghanistan commences.

Beyond October

March 2002: The Tribute in Light project begins.September 11, 2002: First anniversary of the September 11, 2001 attacks commemorations are held throughout the world, particularly the U.S.