Week numbers 5604

5604 has 53 ISO weeks, because 1 January 5604 falls on a Thursday. Week 1: Dec 29, 5603 – Jan 4, 5604 · Week 53: Dec 27, 5604 – Jan 2, 5605

5604 at a glance

Weeks in 560453
Week 1December 29, 5603 – January 4, 5604
Week 53December 27, 5604 – January 2, 5605
Days in 5604366
Leap yearYes

All Weeks in 5604

Week From To Month
Week 1 in 5604 December 29, 5603 January 4, 5604 December / January
Week 2 in 5604 January 5, 5604 January 11, 5604 January
Week 3 in 5604 January 12, 5604 January 18, 5604 January
Week 4 in 5604 January 19, 5604 January 25, 5604 January
Week 5 in 5604 January 26, 5604 February 1, 5604 January / February
Week 6 in 5604 February 2, 5604 February 8, 5604 February
Week 7 in 5604 February 9, 5604 February 15, 5604 February
Week 8 in 5604 February 16, 5604 February 22, 5604 February
Week 9 in 5604 February 23, 5604 February 29, 5604 February
Week 10 in 5604 March 1, 5604 March 7, 5604 March
Week 11 in 5604 March 8, 5604 March 14, 5604 March
Week 12 in 5604 March 15, 5604 March 21, 5604 March
Week 13 in 5604 March 22, 5604 March 28, 5604 March
Week 14 in 5604 March 29, 5604 April 4, 5604 March / April
Week 15 in 5604 April 5, 5604 April 11, 5604 April
Week 16 in 5604 April 12, 5604 April 18, 5604 April
Week 17 in 5604 April 19, 5604 April 25, 5604 April
Week 18 in 5604 April 26, 5604 May 2, 5604 April / May
Week 19 in 5604 May 3, 5604 May 9, 5604 May
Week 20 in 5604 May 10, 5604 May 16, 5604 May
Week 21 in 5604 May 17, 5604 May 23, 5604 May
Week 22 in 5604 May 24, 5604 May 30, 5604 May
Week 23 in 5604 May 31, 5604 June 6, 5604 May / June
Week 24 in 5604 June 7, 5604 June 13, 5604 June
Week 25 in 5604 June 14, 5604 June 20, 5604 June
Week 26 in 5604 June 21, 5604 June 27, 5604 June
Week 27 in 5604 June 28, 5604 July 4, 5604 June / July
Week 28 in 5604 July 5, 5604 July 11, 5604 July
Week 29 in 5604 July 12, 5604 July 18, 5604 July
Week 30 in 5604 July 19, 5604 July 25, 5604 July
Week 31 in 5604 July 26, 5604 August 1, 5604 July / August
Week 32 in 5604 August 2, 5604 August 8, 5604 August
Week 33 in 5604 August 9, 5604 August 15, 5604 August
Week 34 in 5604 August 16, 5604 August 22, 5604 August
Week 35 in 5604 August 23, 5604 August 29, 5604 August
Week 36 in 5604 August 30, 5604 September 5, 5604 August / September
Week 37 in 5604 September 6, 5604 September 12, 5604 September
Week 38 in 5604 September 13, 5604 September 19, 5604 September
Week 39 in 5604 September 20, 5604 September 26, 5604 September
Week 40 in 5604 September 27, 5604 October 3, 5604 September / October
Week 41 in 5604 October 4, 5604 October 10, 5604 October
Week 42 in 5604 October 11, 5604 October 17, 5604 October
Week 43 in 5604 October 18, 5604 October 24, 5604 October
Week 44 in 5604 October 25, 5604 October 31, 5604 October
Week 45 in 5604 November 1, 5604 November 7, 5604 November
Week 46 in 5604 November 8, 5604 November 14, 5604 November
Week 47 in 5604 November 15, 5604 November 21, 5604 November
Week 48 in 5604 November 22, 5604 November 28, 5604 November
Week 49 in 5604 November 29, 5604 December 5, 5604 November / December
Week 50 in 5604 December 6, 5604 December 12, 5604 December
Week 51 in 5604 December 13, 5604 December 19, 5604 December
Week 52 in 5604 December 20, 5604 December 26, 5604 December
Week 53 in 5604 December 27, 5604 January 2, 5605 December / January

Calendars 5604

January 5604
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 5604
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 923242526272829
March 5604
MoTuWeThFrSaSu
Week 101234567
Week 11891011121314
Week 1215161718192021
Week 1322232425262728
Week 14293031
April 5604
MoTuWeThFrSaSu
Week 141234
Week 15567891011
Week 1612131415161718
Week 1719202122232425
Week 182627282930
May 5604
MoTuWeThFrSaSu
Week 1812
Week 193456789
Week 2010111213141516
Week 2117181920212223
Week 2224252627282930
Week 2331
June 5604
MoTuWeThFrSaSu
Week 23123456
Week 2478910111213
Week 2514151617181920
Week 2621222324252627
Week 27282930
July 5604
MoTuWeThFrSaSu
Week 271234
Week 28567891011
Week 2912131415161718
Week 3019202122232425
Week 31262728293031
August 5604
MoTuWeThFrSaSu
Week 311
Week 322345678
Week 339101112131415
Week 3416171819202122
Week 3523242526272829
Week 363031
September 5604
MoTuWeThFrSaSu
Week 3612345
Week 376789101112
Week 3813141516171819
Week 3920212223242526
Week 4027282930
October 5604
MoTuWeThFrSaSu
Week 40123
Week 4145678910
Week 4211121314151617
Week 4318192021222324
Week 4425262728293031
November 5604
MoTuWeThFrSaSu
Week 451234567
Week 46891011121314
Week 4715161718192021
Week 4822232425262728
Week 492930
December 5604
MoTuWeThFrSaSu
Week 212345
Week 506789101112
Week 5113141516171819
Week 5220212223242526
Week 532728293031

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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 5604 starts on December 29, 5603 and ends on January 4, 5604 (ISO 8601, Monday to Sunday). 5604 has 53 ISO weeks, because 1 January 5604 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 5604 have?

5604 has 53 ISO weeks, because 1 January 5604 falls on a Thursday.

When does week 1 of 5604 start?

Week 1 of 5604 starts on December 29, 5603 and ends on January 4, 5604 (ISO 8601, Monday to Sunday).

When does the last week of 5604 end?

Week 53 of 5604 starts on December 27, 5604 and ends on January 2, 5605 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 5604, 5609, 5615, 5620, 5626.

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.