September

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September (Listeni/ˌsɛptˈɛmbər/ sep-TEM-bər) is the ninth month of the year in the Julian and Gregorian Calendars and one of four months with a length of 30 days.

September in the Northern Hemisphere is the seasonal equivalent of March in the Southern Hemisphere. In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September.[1]

September (from Latin septem, "seven") was originally the seventh of ten months on the oldest known Roman calendar, with March (Latin Martius) the first month of the year until perhaps as late as 153 BC.[2] After the calendar reform that added January and February to the beginning of the year, September became the ninth month, but retained its name. It had 29 days until the Julian reform, which added a day.

September marks the beginning of the ecclesiastical year in the Eastern Orthodox Church. It is the start of the academic year in many countries, in which children go back to school after the summer break, sometimes on the first day of the month.

The autumnal equinox in the northern hemisphere and the vernal or spring equinox in the southern hemisphere occur on dates varying from 21 September to 24 September (in UTC). In the pagan wheel of the year the spring equinox is the time of Ostara and is celebrated on the first Sunday of September.[3]

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.

Month-long observances

  • Amerindian Heritage Month (Guyana)
  • Childhood Cancer Awareness Month
  • Gynecologic Cancer Awareness Month
  • Leukemia and Lymphoma Awareness Month
  • Thyroid Cancer Awareness Month

United States observances

Other observances

Movable Gregorian Observances

First Friday

Saturday before First Monday

First Sunday

First Sunday after September 4

Week of September 10

First Monday

Thursday after the first Sunday

Nearest weekday to September 12

Second Saturday

Saturday after first Monday

Second Sunday

Sunday after first Monday

Second Sunday

Weekday nearest September 17

Weekend of the Week of September 17

Third Friday

Third Weekend

Saturday of the Third Weekend

Sunday of the Third Weekend

Week of September 22

Sunday before September 23 to Saturday

Third Monday

Third Tuesday

Fourth Friday

Last Friday

Fourth Sunday

Last Sunday

Fixed Gregorian observances

School starts in September in many countries, such as here, in Liège
WPA poster, 1940
Sapphire, September birthstone
Forget-me-not, September birth flower

Miscellanea

The Dutch Finance Minister carrying the 'third Tuesday in September' suitcase, 1983.

September symbols

References

  1. Metoffice.gov.uk[dead link]
  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.
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External links

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