Week numbers 440

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

440 at a glance

Weeks in 44052
Week 1January 2, 440 – January 8, 440
Week 52December 24, 440 – December 30, 440
Days in 440366
Leap yearYes

All Weeks in 440

Week From To Month
Week 1 in 440 January 2, 440 January 8, 440 January
Week 2 in 440 January 9, 440 January 15, 440 January
Week 3 in 440 January 16, 440 January 22, 440 January
Week 4 in 440 January 23, 440 January 29, 440 January
Week 5 in 440 January 30, 440 February 5, 440 January / February
Week 6 in 440 February 6, 440 February 12, 440 February
Week 7 in 440 February 13, 440 February 19, 440 February
Week 8 in 440 February 20, 440 February 26, 440 February
Week 9 in 440 February 27, 440 March 4, 440 February / March
Week 10 in 440 March 5, 440 March 11, 440 March
Week 11 in 440 March 12, 440 March 18, 440 March
Week 12 in 440 March 19, 440 March 25, 440 March
Week 13 in 440 March 26, 440 April 1, 440 March / April
Week 14 in 440 April 2, 440 April 8, 440 April
Week 15 in 440 April 9, 440 April 15, 440 April
Week 16 in 440 April 16, 440 April 22, 440 April
Week 17 in 440 April 23, 440 April 29, 440 April
Week 18 in 440 April 30, 440 May 6, 440 April / May
Week 19 in 440 May 7, 440 May 13, 440 May
Week 20 in 440 May 14, 440 May 20, 440 May
Week 21 in 440 May 21, 440 May 27, 440 May
Week 22 in 440 May 28, 440 June 3, 440 May / June
Week 23 in 440 June 4, 440 June 10, 440 June
Week 24 in 440 June 11, 440 June 17, 440 June
Week 25 in 440 June 18, 440 June 24, 440 June
Week 26 in 440 June 25, 440 July 1, 440 June / July
Week 27 in 440 July 2, 440 July 8, 440 July
Week 28 in 440 July 9, 440 July 15, 440 July
Week 29 in 440 July 16, 440 July 22, 440 July
Week 30 in 440 July 23, 440 July 29, 440 July
Week 31 in 440 July 30, 440 August 5, 440 July / August
Week 32 in 440 August 6, 440 August 12, 440 August
Week 33 in 440 August 13, 440 August 19, 440 August
Week 34 in 440 August 20, 440 August 26, 440 August
Week 35 in 440 August 27, 440 September 2, 440 August / September
Week 36 in 440 September 3, 440 September 9, 440 September
Week 37 in 440 September 10, 440 September 16, 440 September
Week 38 in 440 September 17, 440 September 23, 440 September
Week 39 in 440 September 24, 440 September 30, 440 September
Week 40 in 440 October 1, 440 October 7, 440 October
Week 41 in 440 October 8, 440 October 14, 440 October
Week 42 in 440 October 15, 440 October 21, 440 October
Week 43 in 440 October 22, 440 October 28, 440 October
Week 44 in 440 October 29, 440 November 4, 440 October / November
Week 45 in 440 November 5, 440 November 11, 440 November
Week 46 in 440 November 12, 440 November 18, 440 November
Week 47 in 440 November 19, 440 November 25, 440 November
Week 48 in 440 November 26, 440 December 2, 440 November / December
Week 49 in 440 December 3, 440 December 9, 440 December
Week 50 in 440 December 10, 440 December 16, 440 December
Week 51 in 440 December 17, 440 December 23, 440 December
Week 52 in 440 December 24, 440 December 30, 440 December

Calendars 440

January 440
MoTuWeThFrSaSu
Week 521
Week 12345678
Week 29101112131415
Week 316171819202122
Week 423242526272829
Week 53031
February 440
MoTuWeThFrSaSu
Week 512345
Week 66789101112
Week 713141516171819
Week 820212223242526
Week 9272829
March 440
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 440
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 440
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 440
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 440
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 440
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 440
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 440
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 440
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 440
MoTuWeThFrSaSu
Week 112
Week 493456789
Week 5010111213141516
Week 5117181920212223
Week 5224252627282930
Week 131

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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 440 starts on January 2, 440 and ends on January 8, 440 (ISO 8601, Monday to Sunday). 440 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 440 have?

440 has 52 ISO weeks.

When does week 1 of 440 start?

Week 1 of 440 starts on January 2, 440 and ends on January 8, 440 (ISO 8601, Monday to Sunday).

When does the last week of 440 end?

Week 52 of 440 starts on December 24, 440 and ends on December 30, 440 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 443, 448, 454, 460, 465.

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.