September 2027 Calendar (Printable, with US Holidays)
Free printable September 2027 calendar with Labor Day and the fall equinox dates. Download a PDF, Word, Excel or PNG file.
- Labor Day
Letter, landscape, Sunday start, US holidays
Word and Excel files follow your paper, orientation and week start.
Printing from a phone? Download the PDF: some phone browsers ignore the page size when printing a web page.
Need other months, your own events or moon phases? Make your own calendar.
Printable September 2027 calendar designs
The printable September 2027 calendar with holidays comes in 10 designs, each a PDF, Word, Excel or PNG file on Letter or A4 paper, in landscape or portrait, with a Sunday or Monday week start. Pick Blank for a blank September 2027 calendar with day numbers only. The buttons on each card follow the paper, orientation and week start you chose for the preview.
Classic grid
Holidays printed in each day box, with shaded weekends.
Large boxes with notes
Big day boxes plus a lined notes column.
Minimal ink-saver
Thin rules and light numbers that save ink.
Large print, high contrast
Bold, high-contrast type for easy reading.
ISO week numbers
ISO week number on every row.
Blank
Plain boxes to fill in; holidays optional.
Vertical list
One line per day, as a list.
3-month view
Last month, this month and next month.
Color accent
Color header in 4 palettes, or black and white.
Planner with to-do column
Month grid with goals and a to-do list.
September 2027 starts on a Wednesday and ends on a Thursday. It has 30 days, 22 weekdays and 21 working days after Labor Day on Monday, September 6, 2027. Every date on this page comes from our holiday data, which is checked against the U.S. Office of Personnel Management (OPM) schedule.
September 2027 at a glance
- Starts on
- WednesdaySeptember 1
- Ends on
- ThursdaySeptember 30
- Days
- 3022 weekdays, 8 weekend days
- Working days
- 21Weekdays minus federal holidays
- Federal holidays
- 1Labor Day (Sep 6)
- Long weekends
- 1Sep 4–6
- ISO weeks
- 35, 36, 37, 38, 39All in ISO year 2027
- Full moon
- Sep 157:04 p.m. EDT
September 2027 holidays
September 2027 has 1 federal holiday: Labor Day on Monday, September 6, 2027.
| Federal holiday | Date | Day off (observed) | Rule |
|---|---|---|---|
| Labor Day | Monday, September 6, 2027 | Same day | 1st Monday of September |
A federal holiday that falls on a Saturday is observed on the Friday before, and one on a Sunday is observed on the Monday after. These are the days off for most federal employees. Employers, schools and states can follow different schedules.
When is Labor Day 2027?
Labor Day 2027 is Monday, September 6, 2027. The holiday falls on the 1st Monday of September, so it always lands between September 1 and September 7.
A Monday holiday creates a 3-day weekend from Saturday, September 4 to Monday, September 6. Federal offices and the U.S. Postal Service close. Private employers and schools set their own schedules, so check yours before you plan the weekend.
How many working days are in September 2027?
September 2027 has 21 working days. The month has 22 weekdays, and Labor Day is its only federal holiday. A business that stays open on Labor Day has 22 working days.
After Labor Day, the next federal day off is Columbus Day on Monday, October 11, 2027. That leaves a long run of full working weeks for projects and fall planning.
Tax dates in September 2027
The 3rd-quarter 2027 estimated tax payment is due Wednesday, September 15, 2027. It covers income from June 1 to August 31, 2027, for self-employed workers and others who pay estimated tax with Form 1040-ES (IRS Publication 509).
The last estimated payment for 2027 is due Tuesday, January 18, 2028.
When does fall start in 2027?
Astronomical fall starts with the September equinox at 2:01 a.m. Eastern Time (EDT) on Thursday, September 23, 2027. Meteorological fall, which weather services use, started on September 1.
The equinox time is given in Eastern Time. Pacific Time is 3 hours behind, so on the West Coast the equinox falls late on Wednesday, September 22, 2027.
Choosing a printable September 2027 calendar design
For a new fall routine, print the planner design and write weekly goals beside the grid. The week-numbers design suits schedules that count ISO weeks 35–39, and the notes design leaves room to plan the Labor Day weekend.
The 3-month view shows August 2027 through October 2027 on one sheet, which keeps the 3rd-quarter 2027 estimated tax in view. The full moon is on Wednesday, September 15, 2027, at 7:04 p.m. EDT.
Moon phases in September 2027
| Phase | Date | Time (ET) |
|---|---|---|
| First Quarter | Tuesday, September 7, 2027 | 2:32 p.m. EDT |
| Full Moon | Wednesday, September 15, 2027 | 7:04 p.m. EDT |
| Last Quarter | Thursday, September 23, 2027 | 6:21 a.m. EDT |
| New Moon | Wednesday, September 29, 2027 | 10:37 p.m. EDT |
Moon phases in Eastern Time. Times can fall on a different date in other time zones.
September 2027 calendar FAQ
Is Labor Day 2027 a federal holiday?
Yes. Labor Day is a federal holiday on Monday, September 6, 2027, and federal offices close that day.
What is the date of the long weekend in September 2027?
The Labor Day weekend runs from Saturday, September 4, 2027 to Monday, September 6, 2027.
When is the 3rd-quarter estimated tax payment due in 2027?
It is due Wednesday, September 15, 2027, according to the IRS rule for the 15th day of the 9th month.
What is the first day of fall 2027?
The September equinox is on Thursday, September 23, 2027, at 2:01 a.m. Eastern Time (EDT).
When is the full moon in September 2027?
The full moon is on Wednesday, September 15, 2027, at 7:04 p.m. Eastern Time (EDT).
Can I edit the September 2027 calendar?
Yes. Every design comes as a Word (DOCX) and Excel (XLSX) file on Letter or A4 paper, in landscape or portrait.
Is this calendar free to print?
Yes. Every file is free for personal, classroom and internal business printing, with no sign-up. The printing license has the details.
Related
Sources: federal holiday dates come from our holiday engine, checked against the OPM federal holiday schedule on Monday, October 26, 2026. Moon phases are calculated with astronomy-engine and checked against the NASA GSFC phase table on Monday, October 26, 2026.
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