ALIEN HOLIDAYS

Today and Upcoming Observances

YNOT Observance Calendar v2.2.0 | 146 observances loaded | layout: list

• Monday, August 24, 2026: Pluto Demotion Day [Space] — Astronomy-culture date tied to Pluto reclassification.
• Wednesday, August 26, 2026: National Dog Day [Animals] — Dog appreciation day.
• Wednesday, August 26, 2026: Women's Equality Day [History] — Commemorates the 19th Amendment.
• Saturday, September 5, 2026: Voyager 1 Launch Anniversary [Space] — Anniversary of Voyager 1 launch in 1977.
• Monday, September 7, 2026: Labor Day [Holiday] — First Monday in September.
• Tuesday, September 8, 2026: International Literacy Day [International] — Literacy observance.
• Tuesday, September 8, 2026: Star Trek Day [Pop Culture] — Original Star Trek TV premiere anniversary.
• Friday, September 11, 2026: Patriot Day [History] — Remembrance of September 11.
• Saturday, September 12, 2026: Video Games Day [Pop Culture] — Video game culture observance.
• Tuesday, September 15, 2026: Hispanic Heritage Month Part 1 [History] — National Hispanic Heritage Month begins September 15.
• Thursday, September 17, 2026: Constitution Day [History] — Recognizes the signing of the U.S. Constitution.
• Saturday, September 19, 2026: Talk Like a Pirate Day [Culture] — Humorous internet-era observance.
• Sunday, September 20, 2026: Area 51 Raid Anniversary [UFO] — Internet culture date tied to Area 51 memes.
• Monday, September 21, 2026: International Day of Peace [International] — Peace observance.
• Tuesday, September 29, 2026: National Coffee Day [Food] — Coffee appreciation day.
• Thursday, October 1, 2026: Cybersecurity Awareness Month [Technology] — Recognized throughout October.
• Thursday, October 1, 2026: Hispanic Heritage Month Part 2 [History] — National Hispanic Heritage Month continues through October 15.
• Thursday, October 1, 2026: International Coffee Day [Food] — Global coffee observance.
• Sunday, October 4, 2026: Sputnik 1 Launch Anniversary [Space] — First artificial satellite launched in 1957.
• Sunday, October 4, 2026: World Animal Day [Animals] — Animal welfare and appreciation day.
• Monday, October 12, 2026: Columbus Day / Indigenous Peoples' Day [Holiday] — Second Monday in October; observance varies.
• Monday, October 12, 2026: Indigenous Peoples' Day / Columbus Day Context [History] — Historical/civic observance varies by jurisdiction.
• Tuesday, October 13, 2026: U.S. Navy Birthday [Military] — Birthday of the United States Navy.
• Friday, October 16, 2026: World Food Day [International] — Food security observance.
• Wednesday, October 21, 2026: Back to the Future Day [Pop Culture] — Date visited in Back to the Future Part II.
• Friday, October 30, 2026: War of the Worlds Broadcast Anniversary [Pop Culture] — 1938 radio drama broadcast anniversary.
• Saturday, October 31, 2026: Halloween [Holiday] — Costume, folklore, and spooky season day.
• Sunday, November 1, 2026: All Saints' Day [Religious] — Christian observance honoring saints.
• Sunday, November 1, 2026: Daylight Saving Time Ends [Time] — First Sunday in November in many U.S. regions.
• Sunday, November 1, 2026: National Novel Writing Month [Writing] — NaNoWriMo writing challenge month.
• Monday, November 2, 2026: Day of the Dead [Culture] — Día de los Muertos observance.
• Thursday, November 5, 2026: Guy Fawkes Night [History] — British historical observance.
• Sunday, November 8, 2026: National STEM Day [Science] — Science, technology, engineering, and math observance.
• Monday, November 9, 2026: Carl Sagan Birthday [Science] — Astronomer and science communicator birthday.
• Tuesday, November 10, 2026: U.S. Marine Corps Birthday [Military] — Birthday of the United States Marine Corps.
• Wednesday, November 11, 2026: Veterans Day [Military] — Honors military veterans in the U.S.
• Friday, November 13, 2026: World Kindness Day [Culture] — Kindness observance.
• Thursday, November 19, 2026: World Toilet Day [International] — Sanitation awareness day.
• Monday, November 23, 2026: Cyber Monday [Commerce] — Monday after Thanksgiving weekend.
• Thursday, November 26, 2026: Thanksgiving Day [Holiday] — Fourth Thursday in November.
• Friday, November 27, 2026: Black Friday [Commerce] — Friday after Thanksgiving in the U.S.
• Saturday, November 28, 2026: Small Business Saturday [Commerce] — Saturday after Thanksgiving period.
• Monday, November 30, 2026: Computer Security Day [Technology] — Computer security awareness day.
• Tuesday, December 1, 2026: World AIDS Day [Health] — HIV/AIDS awareness day.
• Saturday, December 5, 2026: Walt Disney Birthday [Pop Culture] — Birthday of Walt Disney.
• Monday, December 7, 2026: Pearl Harbor Remembrance Day [Military] — Pearl Harbor attack anniversary.
• Wednesday, December 9, 2026: Grace Hopper Birthday [Technology] — Computer pioneer birthday.
• Thursday, December 10, 2026: Human Rights Day [International] — Human rights observance.
• Wednesday, December 16, 2026: Arthur C. Clarke Birthday [Writing] — Science fiction author birthday.
• Thursday, December 17, 2026: Wright Brothers Day [Technology] — Aviation anniversary day.
• Monday, December 21, 2026: Winter Solstice [Nature] — Approximate Northern Hemisphere winter solstice date.
• Thursday, December 24, 2026: Christmas Eve [Holiday] — Evening before Christmas.
• Friday, December 25, 2026: Christmas Day [Holiday] — Christmas holiday.
• Thursday, December 31, 2026: New Year's Eve [Holiday] — Last day of the Gregorian year.
• Friday, January 1, 2027: New Year's Day [Holiday] — First day of the Gregorian year.
• Saturday, January 2, 2027: Isaac Asimov Birthday [Writing] — Science fiction author birthday.
• Monday, January 4, 2027: World Braille Day [International] — Recognizes Louis Braille and accessibility.
• Wednesday, January 6, 2027: Epiphany [Religious] — Christian feast day observed by many traditions.
• Friday, January 8, 2027: Earth's Rotation Day [Science] — Commemorates Foucault pendulum demonstration.
• Friday, January 8, 2027: Stephen Hawking Birthday [Science] — Theoretical physicist birthday.
• Friday, January 15, 2027: Wikipedia Day [Technology] — Anniversary of Wikipedia launching in 2001.
• Sunday, January 17, 2027: Benjamin Franklin Day [History] — Birthday of Benjamin Franklin.
• Monday, January 18, 2027: Martin Luther King Jr. Day [Holiday] — Third Monday in January.
• Sunday, January 24, 2027: International Day of Education [International] — UN-recognized education day.
• Thursday, January 28, 2027: Data Privacy Day [Technology] — Privacy and data protection awareness day.
• Monday, February 1, 2027: Black History Month [History] — U.S. Black history observance month.
• Tuesday, February 2, 2027: Groundhog Day [Culture] — Weather folklore day.
• Thursday, February 4, 2027: World Cancer Day [Health] — Global cancer awareness day.
• Sunday, February 7, 2027: Jules Verne Birthday [Writing] — Science fiction pioneer birthday.
• Thursday, February 11, 2027: International Day of Women and Girls in Science [Science] — Science participation and recognition day.
• Friday, February 12, 2027: Lincoln's Birthday [History] — Birthday of Abraham Lincoln.
• Sunday, February 14, 2027: Valentine's Day [Holiday] — Love and friendship observance.
• Monday, February 15, 2027: Galileo Galilei Birthday [Science] — Birthday of astronomer Galileo Galilei.
• Monday, February 15, 2027: Presidents' Day [Holiday] — Third Monday in February.
• Thursday, February 18, 2027: Pluto Discovery Anniversary [Space] — Pluto was discovered in 1930.