US Holiday On September 12 2021?

The following is a compilation of American federal holidays, federal observances, state holidays and other common patriotic and national observances and commemorations that apply to the United States during Sunday, 2021-09-12:

• National Grandparents' Day:

  ^{[fed-ob][pro]} National Grandparents' Day is a secular holiday celebrated in the United States since 1978. The President is requested to issue each year a proclamation designating the first Sunday in September after Labor Day as National Grandparents Day.

Notes:

^[fed-ob] United States federal observances are days, weeks, months, or other periods designated by the United States Congress for the commemoration or other observance of various events, activities, or topics. These observances differ from Federal holidays in that Federal employees only receive a day free from work on holidays, not observances. Federal observances that are designated by Congress appear in Title 36 of the United States Code (36 U.S.C. § 101 et seq.).

^[pro] This is a special day designated by presidential proclamation.