Week numbers 263

263 has 53 ISO weeks, because 1 January 263 falls on a Thursday. Week 1: Dec 29, 262 – Jan 4, 263 · Week 53: Dec 28, 263 – Jan 3, 264

263 at a glance

Weeks in 26353
Week 1December 29, 262 – January 4, 263
Week 53December 28, 263 – January 3, 264
Days in 263365
Leap yearNo

All Weeks in 263

Week From To Month
Week 1 in 263 December 29, 262 January 4, 263 December / January
Week 2 in 263 January 5, 263 January 11, 263 January
Week 3 in 263 January 12, 263 January 18, 263 January
Week 4 in 263 January 19, 263 January 25, 263 January
Week 5 in 263 January 26, 263 February 1, 263 January / February
Week 6 in 263 February 2, 263 February 8, 263 February
Week 7 in 263 February 9, 263 February 15, 263 February
Week 8 in 263 February 16, 263 February 22, 263 February
Week 9 in 263 February 23, 263 March 1, 263 February / March
Week 10 in 263 March 2, 263 March 8, 263 March
Week 11 in 263 March 9, 263 March 15, 263 March
Week 12 in 263 March 16, 263 March 22, 263 March
Week 13 in 263 March 23, 263 March 29, 263 March
Week 14 in 263 March 30, 263 April 5, 263 March / April
Week 15 in 263 April 6, 263 April 12, 263 April
Week 16 in 263 April 13, 263 April 19, 263 April
Week 17 in 263 April 20, 263 April 26, 263 April
Week 18 in 263 April 27, 263 May 3, 263 April / May
Week 19 in 263 May 4, 263 May 10, 263 May
Week 20 in 263 May 11, 263 May 17, 263 May
Week 21 in 263 May 18, 263 May 24, 263 May
Week 22 in 263 May 25, 263 May 31, 263 May
Week 23 in 263 June 1, 263 June 7, 263 June
Week 24 in 263 June 8, 263 June 14, 263 June
Week 25 in 263 June 15, 263 June 21, 263 June
Week 26 in 263 June 22, 263 June 28, 263 June
Week 27 in 263 June 29, 263 July 5, 263 June / July
Week 28 in 263 July 6, 263 July 12, 263 July
Week 29 in 263 July 13, 263 July 19, 263 July
Week 30 in 263 July 20, 263 July 26, 263 July
Week 31 in 263 July 27, 263 August 2, 263 July / August
Week 32 in 263 August 3, 263 August 9, 263 August
Week 33 in 263 August 10, 263 August 16, 263 August
Week 34 in 263 August 17, 263 August 23, 263 August
Week 35 in 263 August 24, 263 August 30, 263 August
Week 36 in 263 August 31, 263 September 6, 263 August / September
Week 37 in 263 September 7, 263 September 13, 263 September
Week 38 in 263 September 14, 263 September 20, 263 September
Week 39 in 263 September 21, 263 September 27, 263 September
Week 40 in 263 September 28, 263 October 4, 263 September / October
Week 41 in 263 October 5, 263 October 11, 263 October
Week 42 in 263 October 12, 263 October 18, 263 October
Week 43 in 263 October 19, 263 October 25, 263 October
Week 44 in 263 October 26, 263 November 1, 263 October / November
Week 45 in 263 November 2, 263 November 8, 263 November
Week 46 in 263 November 9, 263 November 15, 263 November
Week 47 in 263 November 16, 263 November 22, 263 November
Week 48 in 263 November 23, 263 November 29, 263 November
Week 49 in 263 November 30, 263 December 6, 263 November / December
Week 50 in 263 December 7, 263 December 13, 263 December
Week 51 in 263 December 14, 263 December 20, 263 December
Week 52 in 263 December 21, 263 December 27, 263 December
Week 53 in 263 December 28, 263 January 3, 264 December / January

Calendars 263

January 263
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 263
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 263
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 263
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 263
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 263
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 263
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 263
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 263
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 263
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 263
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 263
MoTuWeThFrSaSu
Week 2123456
Week 5078910111213
Week 5114151617181920
Week 5221222324252627
Week 5328293031

Download Calendar in printable A4 PDF

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 263 starts on December 29, 262 and ends on January 4, 263 (ISO 8601, Monday to Sunday). 263 has 53 ISO weeks, because 1 January 263 falls on a Thursday.

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 263 have?

263 has 53 ISO weeks, because 1 January 263 falls on a Thursday.

When does week 1 of 263 start?

Week 1 of 263 starts on December 29, 262 and ends on January 4, 263 (ISO 8601, Monday to Sunday).

When does the last week of 263 end?

Week 53 of 263 starts on December 28, 263 and ends on January 3, 264 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 263, 268, 274, 280, 285.

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.