September Calendar
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September 2027 and September 2028
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| 5 | 6 Labor Day | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 |
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 | 2 | |||||
| 3 | 4 Labor Day | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
September in the next five years
| Year | Starts | Ends | Federal days off | Working days |
|---|---|---|---|---|
| September 202730 days | Wednesday | Thursday | Mon, Sep 6 | 21 |
| September 202830 days | Friday | Saturday | Mon, Sep 4 | 20 |
| September 202930 days | Saturday | Sunday | Mon, Sep 3 | 19 |
| September 203030 days | Sunday | Monday | Mon, Sep 2 | 20 |
| September 203130 days | Monday | Tuesday | Mon, Sep 1 | 21 |
Working days: Monday to Friday minus federal days off (OPM rule for weekend holidays). Your employer or school may differ.
About September 2027
September 2027 has 30 days. It starts on a Wednesday and ends on a Thursday, with 22 weekdays (Monday to Friday) and 21 federal working days once the holiday is taken out. The month covers ISO weeks 35 to 39 and days 244 to 273 of the year (quarter 3).
Federal holiday this month: Labor Day on Monday, September 6, 2027 (the first Monday in September).
Long weekend: Sat, Sep 4 to Mon, Sep 6 (Labor Day).
The September equinox is on Thursday, September 23, 2027 at 2:01 a.m. EDT, the astronomical start of fall. The full moon falls on Wed, Sep 15 (Harvest Moon, 7:04 p.m. EDT).
September every year
September is month 9 of the year and has 30 days. In the Northern Hemisphere it falls in fall (from the September equinox). None of the next four years repeats the layout of September 2027.
Federal holiday in September: Labor Day, first monday in september. Holidays set on a weekday never need an observed day, so they always make a long weekend.
Other dates in September that are not days off: Patriot Day (september 11); National Grandparents Day (first Sunday after Labor Day).
Questions and answers
How many days are in September?
September has 30 days.
What day does September 2027 start on?
Wednesday, September 1, 2027. September 2028 starts on a Friday.
What holidays are in September?
Federal: Labor Day (first Monday in September). Observances: Patriot Day, National Grandparents Day.
How many working days are in September 2027?
22 weekdays, and 21 working days for federal offices once federal holidays are taken out.
Holidays: U.S. Office of Personnel Management, Federal Holidays (5 U.S.C. 6103), checked October 17, 2026; later years follow the same rules. Unofficial calendar for planning.