11 October 2021

• 284th day of the year. There were then 81 days left in 2021.
• 41st Monday of 2021.
• on the 41st week of 2021 (using ISO standard week number calculation).
• 20th day of Fall. There were 71 days left till Winter.
• Birthstone for this day: Opal and Tourmaline

There are no major holidays or observances in the EU for this date.

• Day Of The Girl - Popular in:
  CountryAustraliaCanadaIndiaNew ZealandSouth AfricaUnited KingdomUnited States
• National Coming Out Day - Popular in: United States, United Kingdom, Canada, Australia
• Columbus Day - Australia, United States
• Indigenous Peoples Day - United States
• World Obesity Day - Popular in: South Africa, United Kingdom, Australia
• Encuentro de Dos Mundos / Descubrimiento de América - Chile
• Día de la Mujer - Bolivia
• Canadian Thanksgiving - Popular in: United States, Canada
• Dia da Mulher Boliviana - Latin America