September 2024 Calendar
A printable September 2024 calendar with US holidays marked and a Monday week start. Print it below, or download it as a PDF, editable Word or Excel file.
September 2024 has 30 days, starts on a Sunday, and covers ISO weeks 35–40. There are 20 working days and 9 weekend days.
About September 2024
September starts with Labor Day and shifts into autumn at the equinox around September 22. School is back in session and the pace picks up.
- Length: 30 days, from Sunday September 1 to Monday September 30.
- Working days: 20 (160 working hours); 9 weekend days.
- Week numbers: ISO weeks 35–40; days 245–274 of the year, in Q3.
- Season & sky: a autumn (from the equinox) month, with 4 moon phases and the Sapphire birthstone.
Make it yours: want September on a designed background or with your own photo? Open it in the calendar maker, or download the fully editable Word version and type your events straight into the boxes.
Holidays & Observances in September 2024
| Date | Day | Holiday | |
|---|---|---|---|
| Sep 2 | Monday | Labor Day | Federal |
Moon Phases in September 2024
| Phase | Date | |
|---|---|---|
| ● | New Moon | Tuesday, September 3 |
| ◕ | First Quarter | Tuesday, September 10 |
| ◯ | Full Moon | Wednesday, September 18 |
| ◖ | Last Quarter | Wednesday, September 25 |
September Facts
| Birthstone | Sapphire |
| Birth flowers | Aster & Morning Glory |
| Zodiac signs | Virgo (until September 22), then Libra |
| Season | autumn (from the equinox) |
| Quarter | Q3 2024 |
Print, Customize & Plan
- 🖨 Use the Print button above, or grab the PDF, Word or Excel download.
- 🎨 Add a designed background from our template gallery or your own photo in the calendar maker.
- 💼 Planning tools: working days in 2024 · days between dates · all 2024 formats.
- 📅 See the full 2024 yearly calendar or all 2024 holidays.
Notable Dates in September
| Date | Occasion | Type |
|---|---|---|
| varies | Labor Day (1st Monday) | holiday |
| Sep 8 | International Literacy Day | observance |
| Sep 11 | Patriot Day (USA) | observance |
| Sep 15 | International Day of Democracy | observance |
| Sep 17 | Constitution Day (USA) | observance |
| Sep 19 | Talk Like a Pirate Day | fun |
| Sep 21 | International Day of Peace | observance |
| varies | First Day of Autumn (Equinox) | astronomy |
| Sep 29 | National Coffee Day (USA) | fun |
September 2024 Calendar FAQ
How many days are in September 2024?
September 2024 has 30 days. It begins on a Sunday and ends on a Monday.
How many working days are in September 2024?
There are 20 working days in September 2024 (about 160 working hours), after taking out weekends and any observed federal holidays. It also has 9 weekend days.
What week numbers does September 2024 cover?
September 2024 spans ISO weeks 35 through 40, covering days 245 to 274 of the year.
What holidays are in September 2024?
September 2024 includes Labor Day.
What day of the week is Labor Day 2024?
Labor Day 2024 falls on a Monday, September 2.