According to the search results, there are several holidays and observances on September 30th, 2023. Some of the notable ones are:
- International Thunderbirds Day
- Orange Shirt Day
- International Translation Day
- National Chewing Gum Day
- Blasphemy Day
- National Family Health and Fitness Day USA
- Mid-Autumn Festival
- Botswana Day
- National Day for Truth and Reconciliation
However, none of the search results indicate that there is anything particularly special or significant happening on September 30th, 2023.
