What month is September?
September is month number 9 of the year. See its position, length, quarter, and key facts.
September
September is the 9th month of the year in the Gregorian calendar. It has 30 days and falls in the 3rd quarter (Q3).
About this page
September is the 9th month of the year in the Gregorian calendar. It has 30 days and falls in the 3rd quarter (Q3).
About September
From the Latin "septem" meaning seven, as it was the seventh month in the early Roman calendar.
September falls in the autumn (Northern Hemisphere) in the Northern Hemisphere, and is part of the third quarter (Q3) of the year.
Key facts about September
- September has 30 days and is the ninth month, despite its name meaning "seventh".
- It contains the autumn (September) equinox in the Northern Hemisphere, around September 22–23.
- In the Northern Hemisphere it marks the start of meteorological autumn and the return to school.
- The name survives from the old Roman calendar, which began the year in March.
September at a glance
| Month number | 9 of 12 |
|---|---|
| Number of days | 30 |
| Quarter | Q3 |
| Season | autumn (Northern Hemisphere) / spring (Southern Hemisphere) |
| Zodiac signs | Virgo (until ~Sep 22) and Libra (from ~Sep 23) |
| Birthstone | Sapphire |
| Birth flower | Aster and Morning Glory |
| Notable dates | Labor Day (first Monday) in the US and Canada. |
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Using this reference
September is the 9th month of the year in the Gregorian calendar. It has 30 days and falls in the 3rd quarter (Q3).
This page is designed as a quick, reliable reference you can return to whenever you need it. It works on any device, needs no account, and can be printed or saved for offline use.
Frequently asked questions
What does this page show?
September is the 9th month of the year in the Gregorian calendar. It has 30 days and falls in the 3rd quarter (Q3).
Is the information free to use?
Yes. This reference is completely free, works on any device, and needs no account.
Can I print or save it?
Yes. You can print the page directly from your browser or save it for offline reference.
Is it kept up to date?
Yes. The page reflects accurate calendar data and highlights the current day where relevant.