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September
Ninth month in the Julian and Gregorian calendars

September, the ninth month in both the Julian and Gregorian calendars, has 30 days and marks seasonal changes: in the Northern Hemisphere, it signals the start of meteorological autumn, while in the Southern Hemisphere it begins spring. The month also marks the start of the ecclesiastical year in the Eastern Orthodox Church and the academic year in many northern countries, often starting on September 1. Originally the seventh month of the Roman calendar, it kept its name after January and February were added, shifting it to month nine.

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Events

Ancient Roman observances for September include Ludi Romani, originally celebrated from September 12 to September 14, later extended to September 5 to September 19. In the 1st century BC, an extra day was added in honor of the deified Julius Caesar on 4 September. Epulum Jovis was held on September 13. Ludi Triumphales was held from September 18–22. The Septimontium was celebrated in September, and on December 11 on later calendars. These dates do not correspond to the modern Gregorian calendar.

September was called the "harvest month" in Charlemagne's calendar. September corresponds partly to the Fructidor and partly to the Vendémiaire of the first French republic. September is called Herbstmonat, harvest month, in Switzerland. The Anglo-Saxons called the month Gerstmonath, barley month, that crop being then usually harvested.3

In 1752, the British Empire adopted the Gregorian calendar. In the British Empire that year, September 2 was immediately followed by September 14.

On Usenet, it is said that September 1993 (Eternal September) never ended.

In the United States, September is one of the most common birth months (third most popular after August and July, which both have 31 days), as all but one Top 10 most common birthdays are in September, based on the National Center for Health Statistics statistics on births between 1994 and 2014. The most common birthday is September 9 (#1), least common is September 1 (#250).456

Astronomy and astrology

The September equinox takes place in this month, and certain observances are organized around it. It is the Autumn equinox in the Northern Hemisphere, and the Vernal equinox in the Southern Hemisphere. The dates can vary from 21 September to 24 September (in UTC).

September is mostly in the sixth month of the astrological calendar (and the first part of the seventh), which begins at the end of March/Mars/Aries.

Symbols

September's birthstone is the sapphire. The birth flowers are the forget-me-not, morning glory and aster.78 The zodiac signs are Virgo (until September 22) and Libra (September 23 onward).910

Observances

This list does not necessarily imply either official status or general observance.

Non-Gregorian

Month-long

United States

Food months

Movable Gregorian

First Wednesday

First Thursday

First Friday

First Sunday

First Sunday after September 4

Week of the first Monday

Week of September 10

First Monday

Nearest weekday to September 12

Second Saturday

Saturday after first Monday

Second Sunday

First Sunday after first Monday

Week of September 17

Third Tuesday

September 17 but observed on previous Friday if it falls on a Saturday or following Monday if on a Sunday

Third Friday

Third Saturday

Weekend of the week of September 17

Third Sunday

Week of Sunday before September 23

Week of September 22

Last week

Last full week

Third Monday

Pertaining to the September Equinox

Fourth Friday

Last Friday

Last Saturday

Last Sunday

Fourth Monday

Last Wednesday

Last weekday

Fixed Gregorian

  • The dictionary definition of September at Wiktionary
  • Media related to September at Wikimedia Commons
  • Quotations related to September at Wikiquote

References

  1. Office, Met. "Met Office: Changing seasons". webarchive.nationalarchives.gov.uk. Archived from the original on 2009-02-25. http://webarchive.nationalarchives.gov.uk/20090225040732/http://www.metoffice.gov.uk/climatechange/guide/effects/seasons.html ↩

  2. H.H. Scullard, Festivals and Ceremonies of the Roman Republic (Cornell University Press, 1981), p. 84; Gary Forsythe, Time in Roman Religion: One Thousand Years of Religious History (Routledge, 2012), p. 14. /wiki/H.H._Scullard ↩

  3. One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "September". Encyclopædia Britannica. Vol. 24 (11th ed.). Cambridge University Press. p. 653. /wiki/Public_domain ↩

  4. "The most common birthday is around the corner. Here's where yours falls on the list". USA TODAY. Retrieved 2023-09-09. https://www.usatoday.com/story/news/2022/11/29/most-common-birthday/10765423002/ ↩

  5. Specktor, Brandon (2020-09-17). "Why September Is the Most Popular Month for Birthdays?". Reader's Digest. Retrieved 2023-09-09. https://www.rd.com/article/september-popular-birth-month/ ↩

  6. "Happy birthday to you and you and you: Why Sept. 9 is the most common birthday". TODAY.com. 2023-09-08. Retrieved 2023-09-09. https://www.today.com/parents/family/most-common-birthday-rcna104134 ↩

  7. SHG Resources. "SHGresources.com". SHGresources.com. Archived from the original on 2013-06-16. Retrieved 2013-08-22. https://web.archive.org/web/20130616154403/http://www.shgresources.com/gems/birthflowers/ ↩

  8. "Flowerstower.com". Archived from the original on February 24, 2013. Retrieved 2013-08-22. https://web.archive.org/web/20130224103640/http://www.flowerstower.com/singleflower.php?name=Forget-me-not ↩

  9. The Earth passes the junction of the signs at 13:30 UT/GMT September 22, 2020, and will pass it again at 19:21 UT/GMT September 22, 2021. ↩

  10. "Astrology Calendar", yourzodiacsign. Signs in UT/GMT for 1950–2030. https://www.yourzodiacsign.com/calendar/ ↩

  11. "Cancer Awareness Month :: Society of Gynecologic Nurse Oncologists". www.sgno.org. https://www.sgno.org/outreach/cancer-awareness-month/ ↩

  12. "September Is Leukemia and Lymphoma Awareness Month" (PDF). Archived from the original (PDF) on 2015-09-05. Retrieved 2016-08-19. https://web.archive.org/web/20150905200718/http://www.cinj.org/sites/cinj/files/documents/Sept15LeukemiaLymphoma.pdf ↩

  13. "Cancer Awareness Month :: Society of Gynecologic Nurse Oncologists". www.sgno.org. https://www.sgno.org/outreach/cancer-awareness-month/ ↩

  14. Baunfire.com, Spark CMS by. "September Is Thyroid Cancer Awareness Month – ThyCa: Thyroid Cancer Survivors' Association, Inc". www.thyca.org. http://www.thyca.org/how-to-help/awareness/september/ ↩

  15. "Promote National Suicide Prevention Month". suicidepreventionlifeline.org. Retrieved 2019-11-25. https://suicidepreventionlifeline.org/promote-national-suicide-prevention-month/ ↩

  16. "Fruit & Veg Month – Healthy Kids". 8 October 2013. https://healthy-kids.com.au/teachers/fruit-veg-month/ ↩

  17. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  18. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  19. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  20. Goldstein, Darra (2011). "National Turkey Day". Gastronomica. 11 (4): iii–iv. doi:10.1525/gfc.2012.11.4.iii. http://www.gastronomica.org/national-turkey-day/ ↩

  21. "September is Hydrocephalus Awareness Month! Here's What You Can Do..." Hydrocephalus Association. Retrieved 29 July 2016. http://www.hydroassoc.org/september-is-hydrocephalus-awareness-month-heres-what-you-can-do/ ↩

  22. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  23. "California Wine Month – California Wines". www.discovercaliforniawines.com. Archived from the original on 2018-11-27. Retrieved 2016-08-20. https://web.archive.org/web/20181127034015/http://www.discovercaliforniawines.com/californiawinemonth/ ↩

  24. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  25. "September Monthly Observations". 4 January 2016. https://nationaldaycalendar.com/september-holidays/ ↩

  26. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  27. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  28. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  29. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  30. "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln. http://food.unl.edu/web/fnh/september ↩

  31. "Home » te Wiki o te Reo Māori". Archived from the original on 2020-02-06. Retrieved 2020-02-05. https://web.archive.org/web/20200206075938/https://www.tewikiotereomaori.co.nz/ ↩