September 2027 Calendar

Print a September 2027 calendar for the start of the school year. September 2027 starts on a Wednesday and has 30 days, so it fits in 5 week rows. Labor Day, the only US federal holiday this month, is Monday 6 September. The autumn equinox is 23 September at 06:02 UTC, which is still the evening of 22 September on the US West Coast; the calendar puts it on the date in the time zone you choose. There is no UK bank holiday in September. Choose Classic, Bold, our own September artwork of an apple orchard at harvest, or a planner with goals, a to-do list and notes; add moon phases, week numbers and your own events; download a PDF in US Letter, A4 or A3, a PNG or SVG, or a phone or desktop wallpaper.

100% private — everything runs in your browser. Your events and settings stay in this browser; the PDF and images are made on your device.

100% private — runs in your browser

Month and design

Your events

One per line: 2027-09-12 Dentist 3pm, Sep 20 Book club, 2027-09-08 to 2027-09-10 Trip. End a line with a colour like #16a34a. Your list stays in this browser.

Page and style

Planner headings

Download

Everything runs in your browser: nothing you type is uploaded, and your settings autosave only in this browser. Holidays: US federal days are calculated with their observed weekdays; UK bank holidays are the GOV.UK list for 2026–2028; Jewish holiday dates are from Hebcal. Moon phases are calculated in your browser and match the US Naval Observatory table within a minute for 2026–2028; solstice and equinox times are the US Naval Observatory’s for 2026–2028. PDF export uses jsPDF and svg2pdf.js (MIT licence); print at 100% (actual size).

How to print a September 2027 calendar

  1. The calendar opens on September 2027 with US holidays, observances and moon phases.
  2. Pick a design: Classic, Bold, Seasonal art (an apple orchard) or Planner with notes.
  3. Set the week start and week numbers; choose the time zone for the moon phase dates, or switch Holidays to a UK option.
  4. Type your own dates in “Your events”, e.g. “2027-09-01 First day of school”.
  5. Choose US Letter, A4 or A3 and portrait or landscape, then download the PDF and print at 100% (Actual size).

What you can use it for

  • A September page for the fridge, desk or classroom
  • First-day-of-school, sports and club dates
  • The Labor Day long weekend
  • A phone or desktop wallpaper for September
  • An A3 wall planner

September 2027 at a glance

September 2027
Starts onWednesday
Ends onThursday
Days30
Weekdays (Mon–Fri)22
Working days after Labor Day21
Weekend days8
ISO week numbers35, 36, 37, 38, 39
Week rows (Sunday / Monday start)5 / 5

Weekdays are Monday to Friday. Working days subtract Monday 6 September, Labor Day, the only federal holiday in September 2027.

Holidays and observances in September 2027

DateDayHolidayType
Sep 6MondayLabor DayFederal holiday
Sep 23ThursdayAutumn equinoxObservance

The autumn equinox row is the date in UTC and US Eastern time; in US Pacific time it is 22 September. The UK has no bank holiday in September 2027.

Sources: the US Office of Personnel Management federal holidays list for 2027 (Labor Day, Monday 6 September), the GOV.UK bank holidays list, the US Naval Observatory for the equinox and moon phases, and the Hong Kong Observatory 2027 calendar table for the weekdays.

Moon phases in September 2027

UTCUS EasternUS Pacific
First quarterSep 7, 18:31Sep 7, 14:31Sep 7, 11:31
Full moonSep 15, 23:03Sep 15, 19:03Sep 15, 16:03
Last quarterSep 23, 10:20Sep 23, 06:20Sep 23, 03:20
New moonSep 30, 02:36Sep 29, 22:36Sep 29, 19:36

Moon phase times are the US Naval Observatory’s, converted to each time zone. The tool calculates the phases in your browser (within a minute of the USNO table) and puts each one on the date it falls in the time zone you choose under “Moon phase dates for”.

Designs

DesignWhat it looks like
ClassicGrey grid, coloured weekday bar, weekends shaded: the most ink-friendly
BoldA coloured title band with the mini months in white and larger day numbers
Seasonal artOur own drawing across the top: an apple orchard at harvest, red apples on the trees, a basket of apples and the first leaves turning
Planner with notesThe grid plus Goals, a To do checklist and Notes: beside the grid in landscape, under it in portrait

The designs are our own drawings: you may use them and anything you make with them, including things you sell, with no credit needed.

Paper and screen sizes

SizeDimensionsFormats
US Letter215.9 × 279.4 mmPortrait or landscape, PDF / PNG / SVG
A4210 × 297 mmPortrait or landscape, PDF / PNG / SVG
A3297 × 420 mmPortrait or landscape, PDF / PNG / SVG
Phone wallpaper1080 × 2340 pxPNG
Desktop wallpaper1920 × 1080 pxPNG

PDF pages are made at these exact sizes. Print at 100% or “Actual size”, not “Fit to page”.

More for September

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Frequently asked questions

What day does September 2027 start on?

September 2027 starts on a Wednesday and ends on a Thursday. It has 30 days: 22 weekdays and 8 weekend days.

When is Labor Day 2027?

Monday 6 September 2027, the first Monday in September. It is the only US federal holiday in September, so the long weekend runs from Saturday 4 to Monday 6 September.

How many working days are in September 2027?

22 weekdays, or 21 working days after Labor Day.

When is the autumn equinox in 2027?

23 September 2027 at 06:02 UTC, per the US Naval Observatory. That is 02:02 on 23 September in US Eastern time and 23:02 on 22 September in US Pacific time, so West Coast calendars show it on the 22nd.

Is there a bank holiday in September 2027 in the UK?

No. There is no bank holiday in September in England and Wales, Scotland or Northern Ireland. The next one is St Andrew’s Day in Scotland on Tuesday 30 November.

When is the full moon in September 2027?

15 September 2027 at 23:03 UTC, per the US Naval Observatory: 19:03 in US Eastern time and 16:03 in US Pacific.

When is the new moon in September 2027?

30 September 2027 at 02:36 UTC. In US Eastern time that is 22:36 on 29 September, so in the Americas the new moon falls on the 29th; the calendar puts it on the date in the time zone you choose.

Does the calendar show Rosh Hashanah?

Rosh Hashanah begins at sundown on Friday 1 October 2027, so it is on the October page, not September. The October 2027 calendar marks it with Yom Kippur as observances.

Is my information uploaded?

No. Your events and settings stay in this browser, and the PDF and images are made on your device.