Week numbers 622

622 has 52 ISO weeks. Week 1: Dec 31, 621 – Jan 6, 622 · Week 52: Dec 23 – 29

622 at a glance

Weeks in 62252
Week 1December 31, 621 – January 6, 622
Week 52December 23, 622 – December 29, 622
Days in 622365
Leap yearNo

All Weeks in 622

Week From To Month
Week 1 in 622 December 31, 621 January 6, 622 December / January
Week 2 in 622 January 7, 622 January 13, 622 January
Week 3 in 622 January 14, 622 January 20, 622 January
Week 4 in 622 January 21, 622 January 27, 622 January
Week 5 in 622 January 28, 622 February 3, 622 January / February
Week 6 in 622 February 4, 622 February 10, 622 February
Week 7 in 622 February 11, 622 February 17, 622 February
Week 8 in 622 February 18, 622 February 24, 622 February
Week 9 in 622 February 25, 622 March 3, 622 February / March
Week 10 in 622 March 4, 622 March 10, 622 March
Week 11 in 622 March 11, 622 March 17, 622 March
Week 12 in 622 March 18, 622 March 24, 622 March
Week 13 in 622 March 25, 622 March 31, 622 March
Week 14 in 622 April 1, 622 April 7, 622 April
Week 15 in 622 April 8, 622 April 14, 622 April
Week 16 in 622 April 15, 622 April 21, 622 April
Week 17 in 622 April 22, 622 April 28, 622 April
Week 18 in 622 April 29, 622 May 5, 622 April / May
Week 19 in 622 May 6, 622 May 12, 622 May
Week 20 in 622 May 13, 622 May 19, 622 May
Week 21 in 622 May 20, 622 May 26, 622 May
Week 22 in 622 May 27, 622 June 2, 622 May / June
Week 23 in 622 June 3, 622 June 9, 622 June
Week 24 in 622 June 10, 622 June 16, 622 June
Week 25 in 622 June 17, 622 June 23, 622 June
Week 26 in 622 June 24, 622 June 30, 622 June
Week 27 in 622 July 1, 622 July 7, 622 July
Week 28 in 622 July 8, 622 July 14, 622 July
Week 29 in 622 July 15, 622 July 21, 622 July
Week 30 in 622 July 22, 622 July 28, 622 July
Week 31 in 622 July 29, 622 August 4, 622 July / August
Week 32 in 622 August 5, 622 August 11, 622 August
Week 33 in 622 August 12, 622 August 18, 622 August
Week 34 in 622 August 19, 622 August 25, 622 August
Week 35 in 622 August 26, 622 September 1, 622 August / September
Week 36 in 622 September 2, 622 September 8, 622 September
Week 37 in 622 September 9, 622 September 15, 622 September
Week 38 in 622 September 16, 622 September 22, 622 September
Week 39 in 622 September 23, 622 September 29, 622 September
Week 40 in 622 September 30, 622 October 6, 622 September / October
Week 41 in 622 October 7, 622 October 13, 622 October
Week 42 in 622 October 14, 622 October 20, 622 October
Week 43 in 622 October 21, 622 October 27, 622 October
Week 44 in 622 October 28, 622 November 3, 622 October / November
Week 45 in 622 November 4, 622 November 10, 622 November
Week 46 in 622 November 11, 622 November 17, 622 November
Week 47 in 622 November 18, 622 November 24, 622 November
Week 48 in 622 November 25, 622 December 1, 622 November / December
Week 49 in 622 December 2, 622 December 8, 622 December
Week 50 in 622 December 9, 622 December 15, 622 December
Week 51 in 622 December 16, 622 December 22, 622 December
Week 52 in 622 December 23, 622 December 29, 622 December

Calendars 622

January 622
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 622
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 925262728
March 622
MoTuWeThFrSaSu
Week 9123
Week 1045678910
Week 1111121314151617
Week 1218192021222324
Week 1325262728293031
April 622
MoTuWeThFrSaSu
Week 141234567
Week 15891011121314
Week 1615161718192021
Week 1722232425262728
Week 182930
May 622
MoTuWeThFrSaSu
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
June 622
MoTuWeThFrSaSu
Week 2212
Week 233456789
Week 2410111213141516
Week 2517181920212223
Week 2624252627282930
July 622
MoTuWeThFrSaSu
Week 271234567
Week 28891011121314
Week 2915161718192021
Week 3022232425262728
Week 31293031
August 622
MoTuWeThFrSaSu
Week 311234
Week 32567891011
Week 3312131415161718
Week 3419202122232425
Week 35262728293031
September 622
MoTuWeThFrSaSu
Week 351
Week 362345678
Week 379101112131415
Week 3816171819202122
Week 3923242526272829
Week 4030
October 622
MoTuWeThFrSaSu
Week 40123456
Week 4178910111213
Week 4214151617181920
Week 4321222324252627
Week 4428293031
November 622
MoTuWeThFrSaSu
Week 44123
Week 4545678910
Week 4611121314151617
Week 4718192021222324
Week 48252627282930
December 622
MoTuWeThFrSaSu
Week 21
Week 492345678
Week 509101112131415
Week 5116171819202122
Week 5223242526272829
Week 13031

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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 622 starts on December 31, 621 and ends on January 6, 622 (ISO 8601, Monday to Sunday). 622 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 622 have?

622 has 52 ISO weeks.

When does week 1 of 622 start?

Week 1 of 622 starts on December 31, 621 and ends on January 6, 622 (ISO 8601, Monday to Sunday).

When does the last week of 622 end?

Week 52 of 622 starts on December 23, 622 and ends on December 29, 622 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 624, 629, 635, 640, 646.

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.