September observances

holiday in North Macedonia

eighth day of the Navratri festival in Hinduism

world day

Harela is a Hindu festival celebrated in the Indian state of Uttarakhand and mainly in Mahasu region of Himachal Pradesh. This festival is very popular in the Kumaon region of Uttarakhand, and is celebrated by the name Harela. This name is used in some places of Garhwal but, it is not commonly used, as the festival is celebrated as Mol-Sankranti or as Rai-Sagrān. It is called Hariyali/Rihyali in Kangra, Shimla and Sirmaur districts, and Dakhrain in Jubbal and Kinnaur district of Himachal Pradesh.

annual observance day

Miķeļi () or Miķeļdiena is a Latvian autumn equinox and annual harvest festival and market. Latvian Miķeļi dainas referred to good and rich husbands as bread fathers, who are associated with the autumn harvest ripening. In different regions, the Miķeļi celebration was also called Mīkaļiem or Mīklāli, but it is also known to other households as Sila Miķelis, Miega Miķelis, and Miega Mača. According to an old calendar, this holiday is celebrated around autumn equinox time (around 21–23 September), when the duration of night is same as the duration of day.

Holiday of the French Community of Belgium

Chilean national holiday, in commeration of the First National Government

public holiday

cultural recognition month in the United States

initiative to promote the use of te reo Māori

thumb|200px|Nalāswān or barley shoots

National Feast Day of Wallonia

Nayrouz (, ) is a feast when martyrs and confessors are commemorated within the Coptic Orthodox Church. Celebrated on September 11, the day is both the start of the Coptic new year and its first month, Thout. Nayrouz is also commemorated by Ethiopian Christians who also call it Enkutatash. Children wear new clothes and give bouquets of flowers to people.

thumb|Wolaytas playing "Leke" at the Gifaataa festival Gifaataa is a cultural festival celebrated by the Wolayta people in the Southern Region of Ethiopia within Wolayita Zone. The festival is celebrated each year in September, where the Wolayta accept the New Year and send off the old one. Gifaataa means "the beginning," and is also considered the bridge from old to new, dark to light. During Gifaataa the Wolayta dance and enjoy cultural foods. The significance of Gifaata is to eliminate issues of the past and start afresh, reconciling past quarrels and strengthening family and community ties

Hindu festivals

informal holiday celebrated by schools

Hindu religious mela

September 17 observance in the US

string of consecutive holidays in Japan

former name of national holidays in Canada and New Zealand

oldest civilisation

konkani Catholic feast

Feast or memorial in the Catholic Church

day celebrated to commemorate liberation of Marathwada from Hyderabad State and integration with India

traditional Vietnamese festival

national holiday in Malta

Eastern Orthodox Christian feast day

youth LGBT support week

professional military holiday in Russia

hindu holy ritual

Public holiday in China

holiday