23 September 2023

23 September 2023 was ...

• 266th day of the year. There were then 99 days left in 2023.
• 38th Saturday of 2023.
• on the 38th week of 2023 (using ISO standard week number calculation).
• 1st day of Fall. There were 89 days left till Winter.
• Birthstone for this day: Sapphire

23 September 2023 European Union Holidays & Popular Observances

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

23 September 2023 Popular Holidays & Observances Worldwide

• Autumn Equinox (Equinoccio de Otoño (Hemisferio Norte)) - Spain
• Beginning of Fall (Autumnal Equinox)
• Bi Visibility Day - United Kingdom & United States
• International Day of Sign Languages
• Autumn Equinox
• Autumn Equinox (Northern Hemisphere) (Equinoccio de Otoño (Hemisferio Norte)) - Mexico
• Fall Begins (Início do Inverno) - Portugal
• Spring Equinox - Australia, Peru & South Africa
• Fall/Autumn Equinox (Northern Hemisphere) (Spanish: Equinoccio de Otoño (Hemisferio Norte))
• Gastronomy Day (Fête de la Gastronomie) - France
• Start of Spring (Southern Hemisphere) (Spanish: Inicio de la Primavera)
• Sügise algus/Sügisene pööripäev - Estonia, Finland & Sweden
• Autumnal Equinox (Høstjevndøgn) - Norway
• Comienzo Otoño - H. Norte (Fall begins - N.H.) - United States