Week numbers 2040

2040 has 52 ISO weeks. Week 1: Jan 2 – 8 · Week 52: Dec 24 – 30

2040 at a glance

Weeks in 204052
Week 1January 2, 2040 – January 8, 2040
Week 52December 24, 2040 – December 30, 2040
Days in 2040366
Leap yearYes

All Weeks in 2040

Week From To Month
Week 1 in 2040 January 2, 2040 January 8, 2040 January
Week 2 in 2040 January 9, 2040 January 15, 2040 January
Week 3 in 2040 January 16, 2040 January 22, 2040 January
Week 4 in 2040 January 23, 2040 January 29, 2040 January
Week 5 in 2040 January 30, 2040 February 5, 2040 January / February
Week 6 in 2040 February 6, 2040 February 12, 2040 February
Week 7 in 2040 February 13, 2040 February 19, 2040 February
Week 8 in 2040 February 20, 2040 February 26, 2040 February
Week 9 in 2040 February 27, 2040 March 4, 2040 February / March
Week 10 in 2040 March 5, 2040 March 11, 2040 March
Week 11 in 2040 March 12, 2040 March 18, 2040 March
Week 12 in 2040 March 19, 2040 March 25, 2040 March
Week 13 in 2040 March 26, 2040 April 1, 2040 March / April
Week 14 in 2040 April 2, 2040 April 8, 2040 April
Week 15 in 2040 April 9, 2040 April 15, 2040 April
Week 16 in 2040 April 16, 2040 April 22, 2040 April
Week 17 in 2040 April 23, 2040 April 29, 2040 April
Week 18 in 2040 April 30, 2040 May 6, 2040 April / May
Week 19 in 2040 May 7, 2040 May 13, 2040 May
Week 20 in 2040 May 14, 2040 May 20, 2040 May
Week 21 in 2040 May 21, 2040 May 27, 2040 May
Week 22 in 2040 May 28, 2040 June 3, 2040 May / June
Week 23 in 2040 June 4, 2040 June 10, 2040 June
Week 24 in 2040 June 11, 2040 June 17, 2040 June
Week 25 in 2040 June 18, 2040 June 24, 2040 June
Week 26 in 2040 June 25, 2040 July 1, 2040 June / July
Week 27 in 2040 July 2, 2040 July 8, 2040 July
Week 28 in 2040 July 9, 2040 July 15, 2040 July
Week 29 in 2040 July 16, 2040 July 22, 2040 July
Week 30 in 2040 July 23, 2040 July 29, 2040 July
Week 31 in 2040 July 30, 2040 August 5, 2040 July / August
Week 32 in 2040 August 6, 2040 August 12, 2040 August
Week 33 in 2040 August 13, 2040 August 19, 2040 August
Week 34 in 2040 August 20, 2040 August 26, 2040 August
Week 35 in 2040 August 27, 2040 September 2, 2040 August / September
Week 36 in 2040 September 3, 2040 September 9, 2040 September
Week 37 in 2040 September 10, 2040 September 16, 2040 September
Week 38 in 2040 September 17, 2040 September 23, 2040 September
Week 39 in 2040 September 24, 2040 September 30, 2040 September
Week 40 in 2040 October 1, 2040 October 7, 2040 October
Week 41 in 2040 October 8, 2040 October 14, 2040 October
Week 42 in 2040 October 15, 2040 October 21, 2040 October
Week 43 in 2040 October 22, 2040 October 28, 2040 October
Week 44 in 2040 October 29, 2040 November 4, 2040 October / November
Week 45 in 2040 November 5, 2040 November 11, 2040 November
Week 46 in 2040 November 12, 2040 November 18, 2040 November
Week 47 in 2040 November 19, 2040 November 25, 2040 November
Week 48 in 2040 November 26, 2040 December 2, 2040 November / December
Week 49 in 2040 December 3, 2040 December 9, 2040 December
Week 50 in 2040 December 10, 2040 December 16, 2040 December
Week 51 in 2040 December 17, 2040 December 23, 2040 December
Week 52 in 2040 December 24, 2040 December 30, 2040 December

Calendars 2040

January 2040
MoTuWeThFrSaSu
Week 521
Week 12345678
Week 29101112131415
Week 316171819202122
Week 423242526272829
Week 53031
February 2040
MoTuWeThFrSaSu
Week 512345
Week 66789101112
Week 713141516171819
Week 820212223242526
Week 9272829
March 2040
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 2040
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 2040
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 2040
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 2040
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 2040
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 2040
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 2040
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 2040
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 2040
MoTuWeThFrSaSu
Week 112
Week 493456789
Week 5010111213141516
Week 5117181920212223
Week 5224252627282930
Week 131

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 2040 starts on January 2, 2040 and ends on January 8, 2040 (ISO 8601, Monday to Sunday). 2040 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 2040 have?

2040 has 52 ISO weeks.

When does week 1 of 2040 start?

Week 1 of 2040 starts on January 2, 2040 and ends on January 8, 2040 (ISO 8601, Monday to Sunday).

When does the last week of 2040 end?

Week 52 of 2040 starts on December 24, 2040 and ends on December 30, 2040 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 2043, 2048, 2054, 2060, 2065.

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.