3643

The year 3643 will start on Thursday, January 1, and end on Thursday, December 31.

Calendar with holidays
Holidays:
 * New Year's Day: Thursday, January 1
 * Epiphany: Tuesday, January 6
 * Martin Luther King Jr. Day: Monday, January 19
 * Super Bowl Sunday: Sunday, February 1
 * Groundhog Day: Monday, February 2
 * Lincoln's Birthday: Thursday, February 12
 * Valentine's Day: Saturday, February 14
 * Washington's Birthday: Monday, February 16
 * Mardi Gras: Tuesday, March 3
 * Ash Wednesday: Wednesday, March 4
 * Daylight Saving Time Starts (clocks spring forward): Sunday, March 8 at 2:00 AM, which becomes 3:00 AM
 * Pi Day: Saturday, March 14
 * Saint Patrick's Day: Tuesday, March 17
 * Cesar Chavez Day: Tuesday, March 31
 * April Fools' Day: Wednesday, April 1
 * Palm Sunday: Sunday, April 12
 * Tax Day: Wednesday, April 15
 * Good Friday: Friday, April 17
 * Easter: Sunday, April 19
 * Earth Day: Wednesday, April 22
 * Cinco de Mayo: Tuesday, May 5
 * Mother's Day: Sunday, May 10
 * Armed Forces Day: Saturday, May 16
 * Memorial Day: Monday, May 25
 * Flag Day: Sunday, June 14
 * Juneteenth: Friday, June 19
 * Father's Day: Sunday, June 21
 * Independence Day: Saturday, July 4
 * Labor Day: Monday, September 7
 * Patriot Day: Friday, September 11
 * National Grandparents' Day: Sunday, September 13
 * Constitution Day: Thursday, September 17
 * Columbus Day: Monday, October 12
 * Indigenous Peoples' Day: Monday, October 12
 * Sweetest Day: Saturday, October 17
 * Halloween: Saturday, October 31
 * National Trick or Treat Day: Saturday, October 31
 * Daylight Saving Time Ends (clocks fall back): Sunday, November 1 at 2:00 AM, which becomes 1:00 AM
 * Election Day: Tuesday, November 3
 * Veterans Day: Wednesday, November 11
 * Thanksgiving: Thursday, November 26
 * Black Friday: Friday, November 27
 * Small Business Saturday: Saturday, November 28
 * Cyber Monday: Monday, November 30
 * Giving Tuesday: Tuesday, December 1
 * Pearl Harbor Remembrance Day: Monday, December 7
 * Christmas Eve: Thursday, December 24
 * Christmas: Friday, December 25
 * Kwanzaa: Saturday, December 26, 3643, to Friday, January 1, 3644
 * New Year's Eve: Thursday, December 31