October 2025 calendar

31 days23 weekdaysStarts on WednesdayISO weeks 40–44

Week starts Week numbers Holidays

October 2025
Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun
40	29	30	1	2	3	4	5
41	6	7	8	9	10	11	12
42	13	14	15	16	17	18	19
43	20	21	22	23	24	25	26
44	27	28	29	30	31	1	2

‹ September 2025 Calendar 2025 November 2025 ›

October 2025 in numbers

Days: 31
Weekdays (Mon–Fri): 23
Weekend days: 8
First and last day: Wednesday – Friday
First and last working day: Wed, Oct 1 – Fri, Oct 31
Week numbers: 40–44
Day of the year: 274–304
Quarter: Q4 2025
Islamic months (computed): Rabi' al-Thani – Jumada al-Ula 1447 AH

With 31 days, October 2025 has four full weeks plus 3 extra days, so Wednesday, Thursday and Friday occur five times; every other weekday occurs four times. It has 8 weekend days and 23 weekdays.

October 1 is day 274 of the year, so October 2025 covers day numbers 274 to 304. In the Umm al-Qura Islamic calendar, 1 Jumada al-Ula 1447 AH falls on October 23 (computed; where months begin with the sighting of the new crescent, the start can differ by a day).

Public holidays in October 2025

Computed from each holiday’s legal rule; holidays set by announcement are left out for 2025.

Date	Holiday	Where
Wed, Oct 1	National Day	Hong Kong
Mon, Oct 6	Labour Day	Australia: New South Wales
Mon, Oct 6	King's Birthday	Australia: Queensland
Sun, Oct 12	National Day of Spain	Spain
Mon, Oct 13	Columbus Day	United States (federal)
Mon, Oct 13	Thanksgiving Day	Canada (federal)
Mon, Oct 13	Sports Day	Japan
Mon, Oct 27	October Bank Holiday	Ireland
Mon, Oct 27	Labour Day	New Zealand

National holidays of the 17 sets we take from official government sources; see public holidays by country for regional days and sources. Where a holiday that falls on a weekend moves to a weekday, the table shows the day off.

Other dates in October 2025

Thu, Oct 2: Yom Kippur10 Tishrei; begins at sunset the evening before
Mon, Oct 6: Mid-Autumn Festival15th day of the 8th lunar month
Fri, Oct 31: HalloweenOctober 31

Days that many people keep but that are not public holidays in our 17 sets, each from its fixed rule. Jewish dates begin at sunset the evening before; Islamic dates follow the Umm al-Qura calendar and are announced locally.

Clock changes and seasons

Sun, Oct 5: South-east Australia (Sydney, Melbourne)clocks go forward one hour at 2:00 a.m., AEST (UTC+10) → AEDT (UTC+11)
Sun, Oct 26: United Kingdom and Irelandclocks go back one hour at 2:00 a.m., BST (UTC+1) → GMT (UTC+0)
Sun, Oct 26: European Union (Central European Time)clocks go back one hour at 3:00 a.m., CEST (UTC+2) → CET (UTC+1)

Clock changes from IANA tzdata as the rules stand today. Equinox and solstice times are the US Naval Observatory’s, in UTC.

Questions

How many weekdays are in October 2025?

23 weekdays (Monday to Friday) and 8 weekend days, out of 31 days. Public holidays are not subtracted, because they depend on the country; this month has 9 holiday dates in the countries we cover (see the table on this page).

What day does October 2025 start on?

October 2025 starts on Wednesday, October 1, 2025 and ends on Friday, October 31, 2025. The first working day is Wed, Oct 1 and the last is Fri, Oct 31.

What week numbers are in October 2025?

Under ISO 8601 (weeks from Monday) October 2025 spans weeks 40–44. The week number page explains the rule.

What is the day number of October 1, 2025?

October 1 is day 274 of 2025 and October 31 is day 304. In the YYDDD format often called a Julian date, the month runs from 25274 to 25304.

What holidays are in October 2025?

National Day (Wed, Oct 1: Hong Kong); Labour Day (Mon, Oct 6: Australia: New South Wales); King's Birthday (Mon, Oct 6: Australia: Queensland); National Day of Spain (Sun, Oct 12: Spain); Columbus Day (Mon, Oct 13: United States (federal)); Thanksgiving Day (Mon, Oct 13: Canada (federal)); Sports Day (Mon, Oct 13: Japan); October Bank Holiday (Mon, Oct 27: Ireland), and 1 more in the table above.