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National holidays of United States in Septemper, 2021

Septemper 2021 in the United States includes important holidays such as Labor Day, which is observed nationwide on the first Monday of the month. This page provides details on federal observances, public closures, and key dates for planning travel, school schedules, or business operations. Stay updated with the official U.S. holiday calendar for Septemper 2021.

The upcoming holiday on Saturday, Sept. 4, 2021 is World Sexual Health Day observed United States.

Upcoming Holidays
Day Date Holiday Type Where
Saturday Sept. 4, 2021 World Sexual Health Day Worldwide United States
Sunday Sept. 5, 2021 International Day of Charity UN observance United States
Monday Sept. 6, 2021 Labor Day National United States
Tuesday Sept. 7, 2021 Rosh Hashana Hebrew United States
Tuesday Sept. 7, 2021 Rosh Hashana Local holiday United States - Texas
Wednesday Sept. 8, 2021 International Literacy Day UN observance United States
Thursday Sept. 9, 2021 California Admission Day Local observance United States - California
Friday Sept. 10, 2021 World Suicide Prevention Day UN observance United States
Saturday Sept. 11, 2021 Patriot Day Observance United States
Saturday Sept. 11, 2021 Carl Garner Federal Lands Cleanup Day Observance United States
Sunday Sept. 12, 2021 National Grandparents Day Observance United States
Sunday Sept. 12, 2021 International Day for South-South Cooperation UN observance United States
Monday Sept. 13, 2021 International Programmers' Day Worldwide United States
Wednesday Sept. 15, 2021 International Day of Democracy UN observance United States
Thursday Sept. 16, 2021 International Day for the Preservation of the Ozone Layer UN observance United States
Thursday Sept. 16, 2021 Yom Kippur Local holiday United States - Texas
Thursday Sept. 16, 2021 Yom Kippur Hebrew United States
Friday Sept. 17, 2021 Constitution Day and Citizenship Day Observance United States
Friday Sept. 17, 2021 National POW/MIA Recognition Day Observance United States
Saturday Sept. 18, 2021 National CleanUp Day Observance United States
Saturday Sept. 18, 2021 Air Force Birthday Observance United States
Tuesday Sept. 21, 2021 First Day of Sukkot Hebrew United States
Tuesday Sept. 21, 2021 International Day of Peace UN observance United States
Wednesday Sept. 22, 2021 Emancipation Day Local observance United States - Ohio
Wednesday Sept. 22, 2021 September Equinox Seasonal United States
Thursday Sept. 23, 2021 World Maritime Day UN observance United States
Thursday Sept. 23, 2021 International Celebrate Bisexuality Day Worldwide United States
Friday Sept. 24, 2021 Native American Day Local observance United States - California
Sunday Sept. 26, 2021 International Day for the Total Elimination of Nuclear Weapons UN observance United States
Sunday Sept. 26, 2021 Gold Star Mother's Day Observance United States
Monday Sept. 27, 2021 Last Day of Sukkot Hebrew United States
Monday Sept. 27, 2021 World Tourism Day UN observance United States
Tuesday Sept. 28, 2021 World Rabies Day UN observance United States
Tuesday Sept. 28, 2021 Shmini Atzeret Hebrew United States
Wednesday Sept. 29, 2021 World Heart Day Worldwide United States
Wednesday Sept. 29, 2021 Simchat Torah Hebrew United States

2021 Holidays

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