2001

The year 2001 started on Monday, January 1, and ended on Monday, December 31. It was the first year of the current millennium and the 21st century. Also, it was the year of the September 11 attacks, which occurred on Tuesday, September 11.

Calendar with holidays
Holidays:
 * New Year's Day: Monday, January 1
 * Square Root Day: Monday, January 1
 * Epiphany: Saturday, January 6
 * Martin Luther King Jr. Day: Monday, January 15
 * Inauguration Day: Saturday, January 20
 * Super Bowl Sunday: Sunday, January 28
 * Groundhog Day: Friday, February 2
 * Lincoln's Birthday: Monday, February 12
 * Valentine's Day: Wednesday, February 14
 * Washington's Birthday: Monday, February 19
 * Mardi Gras: Tuesday, February 27
 * Ash Wednesday: Wednesday, February 28
 * Pi Day: Wednesday, March 14
 * Saint Patrick's Day: Saturday, March 17
 * Cesar Chavez Day: Saturday, March 31
 * April Fools' Day: Sunday, April 1
 * Daylight Saving Time Starts (clocks spring forward): Sunday, April 1 at 2:00 AM, which becomes 3:00 AM
 * Palm Sunday: Sunday, April 8
 * Good Friday: Friday, April 13
 * Easter: Sunday, April 15
 * Tax Day: Monday, April 16
 * Earth Day: Sunday, April 22
 * Cinco de Mayo: Saturday, May 5
 * Mother's Day: Sunday, May 13
 * Armed Forces Day: Saturday, May 19
 * Memorial Day: Monday, May 28
 * Flag Day: Thursday, June 14
 * Father's Day: Sunday, June 17
 * Juneteenth: Tuesday, June 19
 * Independence Day: Wednesday, July 4
 * Labor Day: Monday, September 3
 * National Grandparents' Day: Sunday, September 9
 * Citizenship Day: Monday, September 17
 * Columbus Day: Monday, October 8
 * Indigenous Peoples' Day: Monday, October 8
 * Sweetest Day: Saturday, October 20
 * Daylight Saving Time Ends (clocks fall back): Sunday, October 28 at 2:00 AM, which becomes 1:00 AM
 * Halloween: Wednesday, October 31
 * Election Day: Tuesday, November 6
 * Veterans Day: Sunday, November 11
 * Thanksgiving: Thursday, November 22
 * Black Friday: Friday, November 23
 * Pearl Harbor Remembrance Day: Friday, December 7
 * Christmas Eve: Monday, December 24
 * Christmas: Tuesday, December 25
 * Kwanzaa: Wednesday, December 26, 2001, to Tuesday, January 1, 2002
 * New Year's Eve: Monday, December 31