Week numbers 579

579 has 52 ISO weeks. Week 1: Jan 4 – 10 · Week 52: Dec 27, 579 – Jan 2, 580

579 at a glance

Weeks in 57952
Week 1January 4, 579 – January 10, 579
Week 52December 27, 579 – January 2, 580
Days in 579365
Leap yearNo

All Weeks in 579

Week From To Month
Week 1 in 579 January 4, 579 January 10, 579 January
Week 2 in 579 January 11, 579 January 17, 579 January
Week 3 in 579 January 18, 579 January 24, 579 January
Week 4 in 579 January 25, 579 January 31, 579 January
Week 5 in 579 February 1, 579 February 7, 579 February
Week 6 in 579 February 8, 579 February 14, 579 February
Week 7 in 579 February 15, 579 February 21, 579 February
Week 8 in 579 February 22, 579 February 28, 579 February
Week 9 in 579 March 1, 579 March 7, 579 March
Week 10 in 579 March 8, 579 March 14, 579 March
Week 11 in 579 March 15, 579 March 21, 579 March
Week 12 in 579 March 22, 579 March 28, 579 March
Week 13 in 579 March 29, 579 April 4, 579 March / April
Week 14 in 579 April 5, 579 April 11, 579 April
Week 15 in 579 April 12, 579 April 18, 579 April
Week 16 in 579 April 19, 579 April 25, 579 April
Week 17 in 579 April 26, 579 May 2, 579 April / May
Week 18 in 579 May 3, 579 May 9, 579 May
Week 19 in 579 May 10, 579 May 16, 579 May
Week 20 in 579 May 17, 579 May 23, 579 May
Week 21 in 579 May 24, 579 May 30, 579 May
Week 22 in 579 May 31, 579 June 6, 579 May / June
Week 23 in 579 June 7, 579 June 13, 579 June
Week 24 in 579 June 14, 579 June 20, 579 June
Week 25 in 579 June 21, 579 June 27, 579 June
Week 26 in 579 June 28, 579 July 4, 579 June / July
Week 27 in 579 July 5, 579 July 11, 579 July
Week 28 in 579 July 12, 579 July 18, 579 July
Week 29 in 579 July 19, 579 July 25, 579 July
Week 30 in 579 July 26, 579 August 1, 579 July / August
Week 31 in 579 August 2, 579 August 8, 579 August
Week 32 in 579 August 9, 579 August 15, 579 August
Week 33 in 579 August 16, 579 August 22, 579 August
Week 34 in 579 August 23, 579 August 29, 579 August
Week 35 in 579 August 30, 579 September 5, 579 August / September
Week 36 in 579 September 6, 579 September 12, 579 September
Week 37 in 579 September 13, 579 September 19, 579 September
Week 38 in 579 September 20, 579 September 26, 579 September
Week 39 in 579 September 27, 579 October 3, 579 September / October
Week 40 in 579 October 4, 579 October 10, 579 October
Week 41 in 579 October 11, 579 October 17, 579 October
Week 42 in 579 October 18, 579 October 24, 579 October
Week 43 in 579 October 25, 579 October 31, 579 October
Week 44 in 579 November 1, 579 November 7, 579 November
Week 45 in 579 November 8, 579 November 14, 579 November
Week 46 in 579 November 15, 579 November 21, 579 November
Week 47 in 579 November 22, 579 November 28, 579 November
Week 48 in 579 November 29, 579 December 5, 579 November / December
Week 49 in 579 December 6, 579 December 12, 579 December
Week 50 in 579 December 13, 579 December 19, 579 December
Week 51 in 579 December 20, 579 December 26, 579 December
Week 52 in 579 December 27, 579 January 2, 580 December / January

Calendars 579

January 579
MoTuWeThFrSaSu
Week 53123
Week 145678910
Week 211121314151617
Week 318192021222324
Week 425262728293031
February 579
MoTuWeThFrSaSu
Week 51234567
Week 6891011121314
Week 715161718192021
Week 822232425262728
March 579
MoTuWeThFrSaSu
Week 91234567
Week 10891011121314
Week 1115161718192021
Week 1222232425262728
Week 13293031
April 579
MoTuWeThFrSaSu
Week 131234
Week 14567891011
Week 1512131415161718
Week 1619202122232425
Week 172627282930
May 579
MoTuWeThFrSaSu
Week 1712
Week 183456789
Week 1910111213141516
Week 2017181920212223
Week 2124252627282930
Week 2231
June 579
MoTuWeThFrSaSu
Week 22123456
Week 2378910111213
Week 2414151617181920
Week 2521222324252627
Week 26282930
July 579
MoTuWeThFrSaSu
Week 261234
Week 27567891011
Week 2812131415161718
Week 2919202122232425
Week 30262728293031
August 579
MoTuWeThFrSaSu
Week 301
Week 312345678
Week 329101112131415
Week 3316171819202122
Week 3423242526272829
Week 353031
September 579
MoTuWeThFrSaSu
Week 3512345
Week 366789101112
Week 3713141516171819
Week 3820212223242526
Week 3927282930
October 579
MoTuWeThFrSaSu
Week 39123
Week 4045678910
Week 4111121314151617
Week 4218192021222324
Week 4325262728293031
November 579
MoTuWeThFrSaSu
Week 441234567
Week 45891011121314
Week 4615161718192021
Week 4722232425262728
Week 482930
December 579
MoTuWeThFrSaSu
Week 112345
Week 496789101112
Week 5013141516171819
Week 5120212223242526
Week 522728293031

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 579 starts on January 4, 579 and ends on January 10, 579 (ISO 8601, Monday to Sunday). 579 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 579 have?

579 has 52 ISO weeks.

When does week 1 of 579 start?

Week 1 of 579 starts on January 4, 579 and ends on January 10, 579 (ISO 8601, Monday to Sunday).

When does the last week of 579 end?

Week 52 of 579 starts on December 27, 579 and ends on January 2, 580 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 584, 589, 595, 601, 607.

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.