Based on the search results, there are several holidays tomorrow, September 22, 2023. These include:

• Emancipation Day: A local observance in Ohio.
• Native American Day: A state observance in California and Nevada.
• Michigan Indian Day: A state observance in Michigan.
• Labor Day: A federal holiday observed on the first Monday in September.

Its worth noting that Labor Day is a federal holiday, which means that it is observed by the federal government, banks, and many businesses across the United States. However, Emancipation Day, Native American Day, and Michigan Indian Day are state observances, which means that they are only observed in certain states.