2400

The year 2400 will start on Saturday, January 1, and end on Sunday, December 31. It will be the first century leap year since the year 2000. Also, it will be the last year of the 24th century.

Calendar with holidays
Holidays:
 * New Year's Day: Saturday, January 1
 * Epiphany: Thursday, January 6
 * Martin Luther King Jr. Day: Monday, January 17
 * Groundhog Day: Wednesday, February 2
 * Super Bowl Sunday: Sunday, February 6
 * Lincoln's Birthday: Saturday, February 12
 * Valentine's Day: Monday, February 14
 * Washington's Birthday: Monday, February 21
 * Leap Day: Tuesday, February 29
 * Mardi Gras: Tuesday, February 29
 * Ash Wednesday: Wednesday, March 1
 * Daylight Saving Time Starts (clocks spring forward): Sunday, March 12 at 2:00 AM, which becomes 3:00 AM
 * Pi Day: Tuesday, March 14
 * Saint Patrick's Day: Friday, March 17
 * Cesar Chavez Day: Friday, March 31
 * April Fools' Day: Saturday, April 1
 * Palm Sunday: Sunday, April 9
 * Good Friday: Friday, April 14
 * Easter: Sunday, April 16
 * Earth Day: Saturday, April 22
 * Cinco de Mayo: Friday, May 5
 * Mother's Day: Sunday, May 14
 * Armed Forces Day: Saturday, May 20
 * Memorial Day: Monday, May 29
 * Flag Day: Wednesday, June 14
 * Father's Day: Sunday, June 18
 * Juneteenth: Monday, June 19
 * Independence Day: Tuesday, July 4
 * Labor Day: Monday, September 4
 * National Grandparents' Day: Sunday, September 10
 * Patriot Day: Monday, September 11
 * Constitution Day: Sunday, September 17
 * Columbus Day: Monday, October 9
 * Indigenous Peoples' Day: Monday, October 9
 * Sweetest Day: Saturday, October 21
 * National Trick or Treat Day: Saturday, October 28
 * Halloween: Tuesday, October 31
 * Daylight Saving Time Ends (clocks fall back): Sunday, November 5 at 2:00 AM, which becomes 1:00 AM
 * Election Day: Tuesday, November 7
 * Veterans Day: Saturday, November 11
 * Thanksgiving: Thursday, November 23
 * Black Friday: Friday, November 24
 * Small Business Saturday: Saturday, November 25
 * Cyber Monday: Monday, November 27
 * Giving Tuesday: Tuesday, November 28
 * Pearl Harbor Remembrance Day: Thursday, December 7
 * Christmas Eve: Sunday, December 24
 * Christmas: Monday, December 25
 * Kwanzaa: Tuesday, December 26, 2400, to Monday, January 1, 2401
 * New Year's Eve: Sunday, December 31