• National Online Learning Day

    United States , United States

    National Online Learning Day is observed on 15 September each year in the United States, celebrating the transformative power of digital education and the millions of students, educators, and institutions...

  • El Salvador — Independence Day

    International

    El Salvador — Independence Day is on Wednesday 15 September 2027.El Salvador's national independence observance falls on 15 September.Country or nation: El Salvador.DatesYearDate2026Tuesday 15 September 20262027Wednesday 15 September 20272028Friday 15...

  • Honduras — Independence Day

    International

    Honduras — Independence Day is on Wednesday 15 September 2027.Commemorates independence in 1821.Country or nation: Honduras.DatesYearDate2026Tuesday 15 September 20262027Wednesday 15 September 20272028Friday 15 September 2028Official sourcesprotocol.dfat.gov.auum.fiExplore national days by country...

  • Mexican Independence Day

    International

    Mexican Independence Day is observed on 16 September each year, commemorating the start of Mexico's war of independence from Spain in 1810. The celebrations begin on the evening of 15...

  • Malaysia Day

    International

    Malaysia Day is on Thursday 16 September 2027.Commemorates the formation of Malaysia in 1963, bringing together Malaya, Sabah, Sarawak and Singapore; Singapore left the federation in 1965.Country or nation: Malaysia.DatesYearDate2026Wednesday...

  • Papua New Guinea — Independence Day

    International

    Papua New Guinea — Independence Day is on Thursday 16 September 2027.Commemorates independence on 16 September 1975, the day Papua New Guinea's constitution came into effect.Country or nation: Papua New...

  • World Patient Safety Day 2027

    International

    World Patient Safety Day is on 17 September 2027. Find official WHO information and practical ways to involve patients, carers and health teams.

  • National HIV/ AIDS and Ageing Awareness Day 2027

    United States , United States

    National HIV/ AIDS and Ageing Awareness Day 2027 is on Saturday 18 September 2027. National HIV/AIDS and Aging Awareness Day is an annual observance dedicated to addressing the challenges faced...

  • International Equal Pay Day 2027

    International

    On September 18, 2027, communities around the world will mark International Equal Pay Day - a day dedicated to the ongoing fight for equal pay for work of equal value....

  • Chile – Independence Day

    International

    Chile Independence Day, known in Chile as the Dieciocho, falls on Saturday 18 September 2027. The national holiday marks the anniversary of the First National Government Junta of 1810 and...

  • International Talk Like A Pirate Day 2027

    International

    International Talk Like A Pirate Day 2027 is on Sunday 19 September 2027. International Talk Like a Pirate Day is a whimsical and fun-filled holiday that encourages people around the...

  • Saint Kitts and Nevis — Independence Day

    International

    Saint Kitts and Nevis — Independence Day is on Sunday 19 September 2027.Commemorates the federation gaining full independence on 19 September 1983.Country or nation: Saint Kitts and Nevis.DatesYearDate2026Saturday 19 September...

  • Everywoman Day 2027

    United Kingdom , United Kingdom

    Everywoman Day 2027 is on Monday 20 September 2027. EveryWoman Day is an annual awareness day in the UK that draws attention to women’s health issues often overlooked or misunderstood....

  • World Cleanup Day 2027

    International

    World Cleanup Day on 20 September recognises cleanup efforts and encourages more sustainable management of waste and resources.

  • World Alzheimer’s Day 2027

    International

    YearDateDay 202621 SeptemberMonday 202721 SeptemberTuesday 202821 SeptemberThursday World Alzheimer's Day is observed on the same fixed date every year: 21 September. It falls within World Alzheimer's Month, which runs throughout...

  • International Day of Peace 2027

    International

    YearDateDay 202621 SeptemberMonday 202721 SeptemberTuesday 202821 SeptemberThursday International Day of Peace falls on the same fixed date every year: 21 September, established by the UN General Assembly in 2001. The...

  • Belize – Independence Day

    International

    Belize Independence Day falls on Tuesday 21 September 2027, marking the anniversary of the nation gaining its independence from the United Kingdom in 1981. It is the country's most important...

  • Armenia Independence Day

    International

    Armenia Independence Day falls on Tuesday 21 September 2027, marking 35 years since the country voted to restore its sovereignty. In the referendum held on that date in 1991, a...