Week numbers 2261

2261 has 52 ISO weeks. Week 1: Dec 31, 2260 – Jan 6, 2261 · Week 52: Dec 23 – 29

2261 at a glance

Weeks in 226152
Week 1December 31, 2260 – January 6, 2261
Week 52December 23, 2261 – December 29, 2261
Days in 2261365
Leap yearNo

All Weeks in 2261

Week From To Month
Week 1 in 2261 December 31, 2260 January 6, 2261 December / January
Week 2 in 2261 January 7, 2261 January 13, 2261 January
Week 3 in 2261 January 14, 2261 January 20, 2261 January
Week 4 in 2261 January 21, 2261 January 27, 2261 January
Week 5 in 2261 January 28, 2261 February 3, 2261 January / February
Week 6 in 2261 February 4, 2261 February 10, 2261 February
Week 7 in 2261 February 11, 2261 February 17, 2261 February
Week 8 in 2261 February 18, 2261 February 24, 2261 February
Week 9 in 2261 February 25, 2261 March 3, 2261 February / March
Week 10 in 2261 March 4, 2261 March 10, 2261 March
Week 11 in 2261 March 11, 2261 March 17, 2261 March
Week 12 in 2261 March 18, 2261 March 24, 2261 March
Week 13 in 2261 March 25, 2261 March 31, 2261 March
Week 14 in 2261 April 1, 2261 April 7, 2261 April
Week 15 in 2261 April 8, 2261 April 14, 2261 April
Week 16 in 2261 April 15, 2261 April 21, 2261 April
Week 17 in 2261 April 22, 2261 April 28, 2261 April
Week 18 in 2261 April 29, 2261 May 5, 2261 April / May
Week 19 in 2261 May 6, 2261 May 12, 2261 May
Week 20 in 2261 May 13, 2261 May 19, 2261 May
Week 21 in 2261 May 20, 2261 May 26, 2261 May
Week 22 in 2261 May 27, 2261 June 2, 2261 May / June
Week 23 in 2261 June 3, 2261 June 9, 2261 June
Week 24 in 2261 June 10, 2261 June 16, 2261 June
Week 25 in 2261 June 17, 2261 June 23, 2261 June
Week 26 in 2261 June 24, 2261 June 30, 2261 June
Week 27 in 2261 July 1, 2261 July 7, 2261 July
Week 28 in 2261 July 8, 2261 July 14, 2261 July
Week 29 in 2261 July 15, 2261 July 21, 2261 July
Week 30 in 2261 July 22, 2261 July 28, 2261 July
Week 31 in 2261 July 29, 2261 August 4, 2261 July / August
Week 32 in 2261 August 5, 2261 August 11, 2261 August
Week 33 in 2261 August 12, 2261 August 18, 2261 August
Week 34 in 2261 August 19, 2261 August 25, 2261 August
Week 35 in 2261 August 26, 2261 September 1, 2261 August / September
Week 36 in 2261 September 2, 2261 September 8, 2261 September
Week 37 in 2261 September 9, 2261 September 15, 2261 September
Week 38 in 2261 September 16, 2261 September 22, 2261 September
Week 39 in 2261 September 23, 2261 September 29, 2261 September
Week 40 in 2261 September 30, 2261 October 6, 2261 September / October
Week 41 in 2261 October 7, 2261 October 13, 2261 October
Week 42 in 2261 October 14, 2261 October 20, 2261 October
Week 43 in 2261 October 21, 2261 October 27, 2261 October
Week 44 in 2261 October 28, 2261 November 3, 2261 October / November
Week 45 in 2261 November 4, 2261 November 10, 2261 November
Week 46 in 2261 November 11, 2261 November 17, 2261 November
Week 47 in 2261 November 18, 2261 November 24, 2261 November
Week 48 in 2261 November 25, 2261 December 1, 2261 November / December
Week 49 in 2261 December 2, 2261 December 8, 2261 December
Week 50 in 2261 December 9, 2261 December 15, 2261 December
Week 51 in 2261 December 16, 2261 December 22, 2261 December
Week 52 in 2261 December 23, 2261 December 29, 2261 December

Calendars 2261

January 2261
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 2261
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 925262728
March 2261
MoTuWeThFrSaSu
Week 9123
Week 1045678910
Week 1111121314151617
Week 1218192021222324
Week 1325262728293031
April 2261
MoTuWeThFrSaSu
Week 141234567
Week 15891011121314
Week 1615161718192021
Week 1722232425262728
Week 182930
May 2261
MoTuWeThFrSaSu
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
June 2261
MoTuWeThFrSaSu
Week 2212
Week 233456789
Week 2410111213141516
Week 2517181920212223
Week 2624252627282930
July 2261
MoTuWeThFrSaSu
Week 271234567
Week 28891011121314
Week 2915161718192021
Week 3022232425262728
Week 31293031
August 2261
MoTuWeThFrSaSu
Week 311234
Week 32567891011
Week 3312131415161718
Week 3419202122232425
Week 35262728293031
September 2261
MoTuWeThFrSaSu
Week 351
Week 362345678
Week 379101112131415
Week 3816171819202122
Week 3923242526272829
Week 4030
October 2261
MoTuWeThFrSaSu
Week 40123456
Week 4178910111213
Week 4214151617181920
Week 4321222324252627
Week 4428293031
November 2261
MoTuWeThFrSaSu
Week 44123
Week 4545678910
Week 4611121314151617
Week 4718192021222324
Week 48252627282930
December 2261
MoTuWeThFrSaSu
Week 21
Week 492345678
Week 509101112131415
Week 5116171819202122
Week 5223242526272829
Week 13031

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Find the week number of a date

How week numbers are counted

Most of the world numbers weeks according to the ISO 8601 standard. A week starts on Monday, and week 1 is the week that contains the first Thursday of the year, which is always the week that contains 4 January.

Week 1 of 2261 starts on December 31, 2260 and ends on January 6, 2261 (ISO 8601, Monday to Sunday). 2261 has 52 ISO weeks.

Because of this rule, the first days of January can belong to the last week of the previous year, and the last days of December can belong to week 1 of the next year.

In the United States, weeks usually start on Sunday and week 1 is the week that contains 1 January, so the US week number can differ from the ISO week number.

Frequently Asked Questions (FAQ)

How many weeks does 2261 have?

2261 has 52 ISO weeks.

When does week 1 of 2261 start?

Week 1 of 2261 starts on December 31, 2260 and ends on January 6, 2261 (ISO 8601, Monday to Sunday).

When does the last week of 2261 end?

Week 52 of 2261 starts on December 23, 2261 and ends on December 29, 2261 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 2263, 2268, 2274, 2280, 2285.

Why do the US and Europe show different week numbers?

Europe follows ISO 8601: weeks start on Monday and week 1 is the week with the first Thursday of the year. In the US, weeks usually start on Sunday and week 1 is the week that contains 1 January, so the two numbers can differ by one.