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Everything for October 2027 — week numbers, moon phases, holidays and more. Tap a title to jump to it.
October 2027 calendar details: weekdays, weekends and quarter position
The key numbers for the tenth month of 2027, which is also the first month of the fourth quarter.
- 31 daysFri 1 – Sun 31 Oct
- 10 weekend days5 Saturdays, 5 Sundays
- ISO weeks 39 to 43Week 40 starts 4 Oct
- Full moon 15 Oct13:47 UTC
- New moon 29 Oct13:37 UTC
How October 2027 is laid out
October 2027 starts on Friday 1 October and finishes on Sunday 31 October, which hands it five Saturdays, five Sundays and ten weekend days. With weeks beginning on Monday the printed grid needs only five rows, the last ending exactly on the 31st; a Sunday or Saturday start pushes the dates into a sixth row.
Counting from 1 January, 1 October is day 274 and 31 October is day 304, so 61 days of 2027 remain after the month closes. Libra covers the dates up to 22 October; Scorpio begins on the 23rd. The birthstones are opal and tourmaline, and the birth flowers are the marigold (calendula) and the cosmos.
Under ISO 8601 the first three days sit in week 39, while weeks 40 to 43 fall completely inside the month. Companies that split the year into 13-week quarters normally count Monday 4 October (week 40) as the opening day of Q4.
October 2027 moon phases, including the Hunter’s Moon
Full moon on Fri 15 Oct · New moon on Fri 29 Oct (UTC), with the quarter phases on 7 and 22 Oct.
| Phase | UTC | India (IST) |
|---|---|---|
| First Quarter | Thu 7 Oct, 11:49 | Thu 7 Oct, 17:19 |
| Full Moon (Hunter’s Moon) | Fri 15 Oct, 13:47 | Fri 15 Oct, 19:17 |
| Last Quarter | Fri 22 Oct, 17:29 | Fri 22 Oct, 22:59 |
| New Moon | Fri 29 Oct, 13:37 | Fri 29 Oct, 19:07 |
Tradition calls the full moon that follows the Harvest Moon the Hunter’s Moon. The 2027 Harvest Moon is the 15 September full moon, the one closest to the equinox, so October’s becomes the hunter’s. Time zones can move the icons: in Australia East (UTC+11) the full moon is on Sat 16 Oct and the new moon on Sat 30 Oct, whereas India, Europe, China, Japan and the Americas keep 15 and 29 Oct. Choose your region under Moon dates in time zone and the markers follow.
October public holidays by country, 2027–2030
Fourteen countries and territories for October 2027, 2028, 2029 and 2030. Pick a country under Holidays (2027–2030) in the maker and its October dates print on the calendar in small type — red by default, with a colour picker to change it. Countries without an October holiday show a dash.
| Country | Dates | Holiday |
|---|---|---|
| Australia | Mon 4 Oct | Labour Day / King’s Birthday (regional) |
| Canada | Mon 11 Oct | Thanksgiving (most provinces) |
| Hong Kong | Fri 1 Oct Fri 8 Oct | National Day Chung Yeung Festival |
| India | Sat 2 Oct Sat 9 Oct Fri 29 Oct | Gandhi Jayanti Dussehra (Vijayadashami) Diwali (Deepavali) |
| Ireland | Mon 25 Oct | October Bank Holiday |
| Malaysia | Fri 29 Oct | Deepavali (most states, to be confirmed) |
| New Zealand | Fri 22 Oct Mon 25 Oct | Hawke’s Bay Anniversary (regional) Labour Day |
| Philippines | — | No national public holiday in October |
| Singapore | Thu 28 Oct | Deepavali |
| South Africa | — | No national public holiday in October |
| St. Helena | — | No national public holiday in October |
| United Arab Emirates | — | No national public holiday in October |
| United Kingdom | — | No national public holiday in October |
| United States | Mon 11 Oct | Columbus / Indigenous Peoples’ Day |
Canada’s Thanksgiving and the US Columbus Day both land on Monday 11 October 2027. Singapore’s Ministry of Manpower has set Deepavali for Thursday 28 October, a day ahead of the Friday 29 October date commonly given in India, so the two columns differ by design. Hong Kong enjoys two Friday holidays, National Day on the 1st and Chung Yeung on the 8th. Gandhi Jayanti falls on a Saturday.
October 2027 week numbers and the start of Q4
Late in the year the numbers climb well past 40, which surprises anyone expecting a 1-to-5 count. Match the system your school, employer or country uses.
| Dates (Mon–Sun) | ISO 8601 week | US / Canada week |
|---|---|---|
| Fri 1 – Sun 3 Oct | Week 39 | Week 40 (1–2 Oct), Week 41 (3 Oct) |
| Mon 4 – Sun 10 Oct | Week 40 | Week 41 (4–9 Oct), Week 42 (10 Oct) |
| Mon 11 – Sun 17 Oct | Week 41 | Week 42 (11–16 Oct), Week 43 (17 Oct) |
| Mon 18 – Sun 24 Oct | Week 42 | Week 43 (18–23 Oct), Week 44 (24 Oct) |
| Mon 25 – Sun 31 Oct | Week 43 | Week 44 (25–30 Oct), Week 45 (31 Oct) |
An ISO week belongs to the year that contains its Thursday. October’s first Thursday is the 7th, so 1–3 October still count as week 39, and week 1 of 2027 began on Monday 4 January, which makes Monday 4 October the start of week 40. The Middle East style starts each week on Saturday and counts from the week holding 1 January, while “simple” numbering just labels the printed rows 1 to 5. Every system can be selected in the maker.
Global observances and awareness days in October 2027
Most of these dates are not days off. They are the international and awareness days that schools, charities and employers like to mark.
| Date | Observance | Notes |
|---|---|---|
| Fri 1 Oct | International Day of Older Persons | UN day. Rosh Hashanah begins at sundown. |
| Mon 4 Oct | World Animal Day | Awareness day; Nobel Prize announcements also start in the first week. |
| Tue 5 Oct | World Teachers’ Day | UNESCO observance for educators. |
| Sun 10 Oct | World Mental Health Day | Global campaign day. Yom Kippur begins at sundown. |
| Mon 11 Oct | International Day of the Girl Child | UN day. Yom Kippur is observed. |
| Fri 15 Oct | Global Handwashing Day | Public-health campaign. Sukkot begins at sundown. |
| Sat 16 Oct | World Food Day | FAO observance of the anniversary of its founding in 1945. |
| Sun 17 Oct | International Day for the Eradication of Poverty | UN observance. |
| Sun 24 Oct | United Nations Day; World Polio Day | Marks the UN Charter coming into force in 1945. |
| Sun 31 Oct | Halloween; World Cities Day | Reformation Day in parts of Europe. |
The whole month also carries Breast Cancer Awareness Month, Black History Month in the United Kingdom and Dyslexia Awareness Month. Use a coloured cell or the Flag icon to keep the ones you care about visible.
Clock changes and seasonal shifts in October 2027
Two things shift during the month: the amount of daylight and, for many countries, the time on the clock.
Europe and the UK: back on Sunday 31 Oct
Summer time ends at 01:00 UTC. UK clocks move from 02:00 to 01:00 and most of the EU from 03:00 to 02:00, giving everyone an extra hour.
Eastern Australia: forward on Sunday 3 Oct
New South Wales, Victoria, South Australia, Tasmania and the ACT start daylight time, so a call with London shifts by an hour on the calendar.
North America waits until 7 Nov
The United States and Canada stay on daylight time all October, so the transatlantic gap is one hour narrower for a week after Europe’s change.
Autumn in the north
Many temperate places lose around two to three minutes of daylight each day while leaf colour peaks.
Spring in the south
Australia, New Zealand, southern Africa and much of South America get longer days and warmer evenings.
India and the tropics
There is no clock change, so the main seasonal marker is the withdrawal of the monsoon.
Four steps to your October 2027 calendar with week numbers, moon phases and holidays
The whole process happens inside your browser, with no account and no upload.
- Set up the gridStart in the left column with the year, the week-numbering system and the first weekday. Monday gives five tidy rows for October 2027, while Sunday or Saturday adds a sixth. Moon phases, paper size and orientation sit in the same column.
- Add holidaysFind Holidays (2027–2030), select a country and its October dates show up in small type inside the date boxes. Switch the colour if red fights with your design.
- Click a date to mark itA compact dialog names the date for you. Type a label, choose a text colour, tint the cell and attach an icon — Party for Halloween, Gift for Diwali — then press Save.
- Save, print or sendDownload a PDF for a printer, a PNG for a slide or a JPG for a chat, or copy the share link that restores the whole sheet on any device.
Printing an October sheet and picking a file format
- Pair page and printer. Choose A4 in the maker if the tray holds A4, Letter if it holds Letter. A mismatch causes most clipped edges.
- PDF is the safe default. It stores your size and orientation and prints identically on any machine, which suits copy shops.
- PNG keeps lines sharp. Use it for slides, newsletters or design files where thin gridlines and small holiday text must stay crisp.
- JPG is the light option. A small file for messaging apps and email, with a little softness that rarely shows.
- Leave a margin. Home inkjets cannot print to the very edge; if a border vanishes, scale to roughly 95% in the print dialog.
- Mind the ink. Coloured templates use more toner. For a stack of office copies, a black-and-white design such as Plain or Ledger costs far less.
Choosing a design for your October page
Twenty-four looks sharing one date engine: fourteen colour and layout designs plus a ten-strong black-and-white collection.
Classic Print
A framed title box above a ruled seven-column table — the familiar look of a printed wall calendar.
Lines
A large, light “October 2027” heading beside a thin black grid, with tiny date numbers that leave each box open for notes.
Rainbow
Each weekday column carries its own pastel hue, so a busy month stays easy to scan.
List View
One line per date with the weekday on both edges and warm weekend shading. Ideal for rotas and logs.
Elegant
A serif “OCTOBER” on one side, the year on the other and a rounded grid beneath.
Script
A flowing handwritten month name over an oversized pale year, under a teal weekday bar. The most decorative design.
Classic B&W
Solid black rules on white paper. It photocopies cleanly and keeps toner use low.
Simple White
Pale gridlines with blue accents and plenty of space for short notes, suited to a fridge or a desk pad.
Ocean
A cool blue-and-navy scheme that reads calm in a home office and sharp in a reception area.
Forest
Soft sage with a deep green grid, echoing October woodland colour.
Sunset
Cream with burnt orange — the natural pick for an autumn kitchen or a harvest-themed family board.
Lavender
Light violet with a bold purple accent, popular for revision timetables and habit sheets.
Gray
Quiet slate on off-white that blends into an office wall and only draws the eye when needed.
Boxed Days
Every date sits in its own small square, with Saturday in blue and Sunday in red, leaving room underneath for details.
Black & white collection
Ten monochrome layouts — Plain, Note Cells, Ledger, Weekend Blocks, Tabs, Lined Notes, Diagonal, Receipt, Certificate and Calligraphy — designed for low-ink, high-contrast printing from a plain office printer.
Everything the October 2027 maker includes
Each layer can be switched on or off, so the finished page carries only what you need.
Twenty-four working layouts
Fourteen colour designs from Classic Print to Boxed Days, plus a black-and-white collection of ten, each with its own structure rather than a colour swap on one grid.
Five ways to number weeks
ISO 8601, US / Canada, Saturday-start Middle East style, a plain 1–5 count or no week column, with an independent first-weekday switch.
Hunter’s Moon and new moon markers
Only the two headline phases are drawn — a gold disc for the full moon and an open ring for the new moon — on the date for your chosen time zone.
Public holidays for 14 countries
Choose a country and its October holidays print in small type inside the cells, with a colour picker and data for 2027 to 2030.
Notes, cell colours and 24 icons
Every date takes text, a text colour, a background tint and one of 24 icons, from Birthday, Party and Gift to Deadline, Travel and Money.
Share link, paper sizes and tint
Settings and notes travel in the URL, ten paper sizes cover A3 to Tabloid, and one weekend tint shades every Saturday and Sunday.
Ways people use an October sheet
By October school routines are settled, budgets are being finalised and the festive season is approaching, so a printed month earns its place.
Q4 sprint planning
Mark milestones, tint review weeks and place Flag icons on launch days to see the final quarter at a glance.
Exam and coursework timetables
Print the Lavender or Gray design on A4, add deadlines with the Deadline icon and pin it above the desk.
Halloween and party plans
Put the Party icon on the 31st and add costume or sweets reminders in the days before.
Diwali and festive prep
Block shopping, cleaning and travel around 29 October, then note guests with Home or Gift icons.
Charity and awareness drives
Plan Breast Cancer Awareness Month events and fundraising walks, then export a PNG for the volunteer group.
Cross-border teams
Turn on two countries’ holidays in turn — Canada’s Thanksgiving on the 11th, say, then Hong Kong’s Chung Yeung on the 8th — to spot clashes before scheduling.
How October’s dates, week counts, moon search and holidays are handled
Notes belong to dates
Each note is stored against a full date such as YYYY-10-15, with its text colour, cell tint and icon. Changing template, week start or orientation never detaches a note from its day. The editing dialog sits outside the printable sheet, so it cannot leak into an export, while footer text belongs to the sheet as a whole.
Month logic that is specific to October
The grid starts on 1 October and counts the blank cells before it from your first weekday: four for Monday, five for Sunday and six for Saturday in 2027, which is why Monday needs five rows and the others six. Moon markers come from a search window running from 1 October to just before 1 November, shifted by your time-zone offset. For the US and Middle East systems week 1 is the week holding 1 January, so October rows read in the 40s.
Holidays as labels, not notes
Holidays are static labels stored by country and year, drawn top-right in a colour you can change. They never overwrite a note, and a country with no October holiday simply shows nothing. The table above rebuilds itself when you switch between 2027, 2028, 2029 and 2030.
What the share link contains
Only settings that differ from the defaults are written as JSON, UTF-8 encoded and turned into URL-safe base64 after #s=. The browser never sends that fragment to a server. Opening the link applies it before the first draw, and Reset clears both the stored copy and the fragment.
Fun facts about October
Quick, surprising details about the tenth month of the year.
- Eighth by name, tenth by positionOctober comes from the Latin octo, eight. In the earliest Roman year, which started in March, it truly was the eighth month; the name stayed after January and February were added.
- The ten days that vanishedWhen Catholic countries adopted the Gregorian calendar in 1582, Thursday 4 October was followed directly by Friday 15 October.
- Harvest Moon, then Hunter’s MoonThe full moon nearest the September equinox is the Harvest Moon. The next one, usually in October, is the Hunter’s Moon — in 2027 on 15 October.
- Opal, tourmaline, marigold and cosmosOpal and tourmaline share the birthstone role, and the birth flowers are the marigold (calendula) and the cosmos.
- Libra gives way to ScorpioThe scales govern through 22 October. From the 23rd the scorpion takes over.
- A November revolution in OctoberRussia’s Bolshevik uprising is named for 25 October 1917 in the Julian calendar, which was 7 November in the Gregorian one.
- Nobel seasonThe Nobel Prize announcements usually span the first full week of October and the Monday after, so the month opens with prize news from Stockholm and Oslo.
- From Samhain to HalloweenHalloween’s roots lie in the Gaelic festival of Samhain, which marked the turn from harvest to winter around the end of October.
A short history of October
The story of how the “eighth” month became the tenth.
- c. 753 BCTradition credits Romulus with a ten-month year that opened in March. October was month eight.
- c. 700 BCNuma Pompilius added January and February, pushing October to tenth place while “eight” stayed in its name.
- 46 BCJulius Caesar’s reform fixed the month lengths of the Julian calendar, keeping October at 31 days.
- Late 1st century ADEmperor Domitian renamed September and October after himself. The names were dropped after his death in AD 96.
- 1582Pope Gregory XIII reformed the calendar and removed ten days: 4 October was followed by 15 October in the first adopting countries.
- 1917The Bolshevik takeover in Petrograd took place on 25 October by the Julian calendar, hence the “October Revolution”.
- 24 Oct 1945The United Nations Charter entered into force, which is why 24 October is United Nations Day.
- 4 Oct 1957The Soviet Union launched Sputnik 1, the first artificial satellite, opening the space age.
Famous people born in October
Artists, scientists, composers and leaders with an October birthday.
October 2027 calendar: week numbers, moon phases, holidays and more
Where can I get a free blank printable October 2027 calendar?
Right on this page. The maker above opens an empty October 2027 grid that you can print at once or save as a PDF, PNG or JPG. It is free, needs no sign-up and runs entirely in your browser.
What weekday does October 2027 begin and end on?
It begins on Friday 1 October and ends on Sunday 31 October. The 273 days from 1 January to 30 September make exactly 39 weeks, so October starts on the same weekday as January 2027.
How many weekend days are in October 2027?
Ten. Saturdays are the 2nd, 9th, 16th, 23rd and 30th, and Sundays are the 3rd, 10th, 17th, 24th and 31st.
Why does October 2027 need five rows on one layout and six on another?
With Monday first, four blank cells precede the 1st and the 31 dates close the fifth row exactly. Starting the week on Sunday or Saturday adds blank cells before the 1st, so a sixth row is required.
Which week numbers fall in October 2027?
Under ISO 8601 they are weeks 39 to 43: 1–3 October is week 39, week 40 starts on Monday 4 October and the month ends in week 43. Choose “US / Canada” and the same rows read 40 to 45.
Why are October’s week numbers in the 40s?
Week systems count from the start of the year, so a month in the tenth position sits around week 40. If you would rather see 1 to 5, pick “Simple sequential” in the week-numbering menu.
When is week 40, the start of Q4, in 2027?
Week 40 begins on Monday 4 October 2027. Companies that use 13-week fiscal quarters label it the first week of Q4, although calendar quarters begin on 1 October.
When are the moon phases in October 2027?
First quarter is on 7 October, the full Hunter’s Moon on 15 October at about 13:47 UTC, last quarter on 22 October and the new moon on 29 October at about 13:37 UTC. Times are accurate to roughly two minutes.
Can the moon dates follow my time zone?
Yes. Pick a region under “Moon dates in time zone”. In Australia East the full moon moves to 16 October and the new moon to 30 October, while India keeps 15 and 29 October.
Which public holidays fall in October 2027?
Examples: Gandhi Jayanti on Sat 2 Oct, Dussehra on Sat 9 Oct, Canadian Thanksgiving and Columbus Day on Mon 11 Oct, Ireland’s October Bank Holiday on Mon 25 Oct and Diwali on Fri 29 Oct (Thu 28 Oct in Singapore). The holidays table covers 14 countries.
How do I show my country’s holidays on the calendar?
Open “Holidays (2027–2030)” in the maker, choose your country and its October holidays print in small type inside the cells. A colour picker appears so you can change the default red.
Why do some countries show no holidays in October?
The United Kingdom, South Africa, St. Helena, the UAE and the Philippines have no national public holiday in October, so their rows show a dash. Regional or religious days may still apply locally.
When do the clocks change in October 2027?
Europe and the UK go back an hour on Sunday 31 October, and parts of eastern Australia go forward on Sunday 3 October. The United States and Canada change on 7 November.
How do I mark Halloween or Diwali on the sheet?
Click the date, type a short label, choose a text colour or cell tint and tick “Mark as important” to add an icon such as Party or Gift. The dialog never appears in downloaded files.
Which paper size and design suit an October calendar?
A3 or Tabloid for walls, A4 or Letter for home printers and A5 for a desk pad. Sunset and Forest suit the season, while Classic Print or the black-and-white Plain and Note Cells layouts suit offices.
Can I save, share or reset my October calendar?
Yes to all three. Your browser stores settings and notes locally, the share link carries them to another device and “Reset to defaults” clears notes, choices and any link fragment.
Keep your October 2027 planner close
Bookmark this page and the next visit reopens your October sheet with its template, typeface, week system, holiday country, tint, paper size and every note, colour and icon intact.