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Calendar

Calendar 2026 with week numbers

All twelve months of 2026, with ISO week numbers. Weeks start on Monday; switch to Sunday if you prefer.

Weeks start on
January — January, with ISO week numbers
WkMonTueWedThuFriSatSun
11234
2567891011
312131415161718
419202122232425
5262728293031
February — February, with ISO week numbers
WkMonTueWedThuFriSatSun
51
62345678
79101112131415
816171819202122
9232425262728
March — March, with ISO week numbers
WkMonTueWedThuFriSatSun
91
102345678
119101112131415
1216171819202122
1323242526272829
143031
April — April, with ISO week numbers
WkMonTueWedThuFriSatSun
1412345
156789101112
1613141516171819
1720212223242526
1827282930
May — May, with ISO week numbers
WkMonTueWedThuFriSatSun
18123
1945678910
2011121314151617
2118192021222324
2225262728293031
June — June, with ISO week numbers
WkMonTueWedThuFriSatSun
231234567
24891011121314
2515161718192021
2622232425262728
272930
July — July, with ISO week numbers
WkMonTueWedThuFriSatSun
2712345
286789101112
2913141516171819
3020212223242526
312728293031
August — August, with ISO week numbers
WkMonTueWedThuFriSatSun
3112
323456789
3310111213141516
3417181920212223
3524252627282930
3631
September — September, with ISO week numbers
WkMonTueWedThuFriSatSun
36123456
3778910111213
3814151617181920
3921222324252627
40282930
October — October, with ISO week numbers
WkMonTueWedThuFriSatSun
401234
41567891011
4212131415161718
4319202122232425
44262728293031
November — November, with ISO week numbers
WkMonTueWedThuFriSatSun
441
452345678
469101112131415
4716171819202122
4823242526272829
4930
December — December, with ISO week numbers
WkMonTueWedThuFriSatSun
49123456
5078910111213
5114151617181920
5221222324252627
5328293031

Calendar

2026 at a glance

01Days

365

02ISO weeks

53

2026 has 53 ISO weeks; week 1 starts on Monday, 29 December 2025.

03Starts on

Thursday, 1 January 2026

04Ends on

Thursday, 31 December 2026

05Is 2026 a leap year?

2026 is not a leap year: 365 days. The next leap year is 2028.

Clock changes

Clock changes in 2026

01European Union and the UK (shown in Paris time)

Sunday, 29 March 2026 at 02:00: clocks go forward 1 hour to 03:00 (CET → CEST).

Sunday, 25 October 2026 at 03:00: clocks go back 1 hour to 02:00 (CEST → CET).

The EU and the UK change at 01:00 UTC on the last Sunday of March and of October, at the same moment in every country.

02United States and most of Canada (shown in New York time)

Sunday, 8 March 2026 at 02:00: clocks go forward 1 hour to 03:00 (EST → EDT).

Sunday, 1 November 2026 at 02:00: clocks go back 1 hour to 01:00 (EDT → EST).

03Your time zone

How it works

ISO week numbers

ISO 8601 weeks start on Monday, and week 1 is the week that contains the year’s first Thursday (equivalently, 4 January). A year therefore has 52 or 53 weeks, and the first days of January can belong to the last week of the previous year.

The Gregorian leap-year rule: a year divisible by 4 is a leap year, except years divisible by 100, unless they are also divisible by 400. So 2000 was a leap year and 2100 will not be.

Other years

Questions

Good to know

How many weeks are there in 2026?

2026 has 53 ISO weeks; week 1 starts on Monday, 29 December 2025.

Is 2026 a leap year?

2026 is not a leap year: 365 days. The next leap year is 2028.

When do the clocks change in 2026?

In the EU and the UK: Sunday, 29 March 2026 at 02:00: clocks go forward 1 hour to 03:00 (CET → CEST); Sunday, 25 October 2026 at 03:00: clocks go back 1 hour to 02:00 (CEST → CET). In the US: Sunday, 8 March 2026 at 02:00: clocks go forward 1 hour to 03:00 (EST → EDT); Sunday, 1 November 2026 at 02:00: clocks go back 1 hour to 01:00 (EDT → EST).

What week number is it today?

On Tuesday, 13 October 2026 it is ISO week 42 of 2026 (weeks start on Monday). The highlighted day in the calendar above is today in your own time zone.