Week numbers 612

612 has 53 ISO weeks, because it is a leap year that starts on a Wednesday. Week 1: Dec 30, 611 – Jan 5, 612 · Week 53: Dec 28, 612 – Jan 3, 613

612 at a glance

Weeks in 61253
Week 1December 30, 611 – January 5, 612
Week 53December 28, 612 – January 3, 613
Days in 612366
Leap yearYes

All Weeks in 612

Week From To Month
Week 1 in 612 December 30, 611 January 5, 612 December / January
Week 2 in 612 January 6, 612 January 12, 612 January
Week 3 in 612 January 13, 612 January 19, 612 January
Week 4 in 612 January 20, 612 January 26, 612 January
Week 5 in 612 January 27, 612 February 2, 612 January / February
Week 6 in 612 February 3, 612 February 9, 612 February
Week 7 in 612 February 10, 612 February 16, 612 February
Week 8 in 612 February 17, 612 February 23, 612 February
Week 9 in 612 February 24, 612 March 1, 612 February / March
Week 10 in 612 March 2, 612 March 8, 612 March
Week 11 in 612 March 9, 612 March 15, 612 March
Week 12 in 612 March 16, 612 March 22, 612 March
Week 13 in 612 March 23, 612 March 29, 612 March
Week 14 in 612 March 30, 612 April 5, 612 March / April
Week 15 in 612 April 6, 612 April 12, 612 April
Week 16 in 612 April 13, 612 April 19, 612 April
Week 17 in 612 April 20, 612 April 26, 612 April
Week 18 in 612 April 27, 612 May 3, 612 April / May
Week 19 in 612 May 4, 612 May 10, 612 May
Week 20 in 612 May 11, 612 May 17, 612 May
Week 21 in 612 May 18, 612 May 24, 612 May
Week 22 in 612 May 25, 612 May 31, 612 May
Week 23 in 612 June 1, 612 June 7, 612 June
Week 24 in 612 June 8, 612 June 14, 612 June
Week 25 in 612 June 15, 612 June 21, 612 June
Week 26 in 612 June 22, 612 June 28, 612 June
Week 27 in 612 June 29, 612 July 5, 612 June / July
Week 28 in 612 July 6, 612 July 12, 612 July
Week 29 in 612 July 13, 612 July 19, 612 July
Week 30 in 612 July 20, 612 July 26, 612 July
Week 31 in 612 July 27, 612 August 2, 612 July / August
Week 32 in 612 August 3, 612 August 9, 612 August
Week 33 in 612 August 10, 612 August 16, 612 August
Week 34 in 612 August 17, 612 August 23, 612 August
Week 35 in 612 August 24, 612 August 30, 612 August
Week 36 in 612 August 31, 612 September 6, 612 August / September
Week 37 in 612 September 7, 612 September 13, 612 September
Week 38 in 612 September 14, 612 September 20, 612 September
Week 39 in 612 September 21, 612 September 27, 612 September
Week 40 in 612 September 28, 612 October 4, 612 September / October
Week 41 in 612 October 5, 612 October 11, 612 October
Week 42 in 612 October 12, 612 October 18, 612 October
Week 43 in 612 October 19, 612 October 25, 612 October
Week 44 in 612 October 26, 612 November 1, 612 October / November
Week 45 in 612 November 2, 612 November 8, 612 November
Week 46 in 612 November 9, 612 November 15, 612 November
Week 47 in 612 November 16, 612 November 22, 612 November
Week 48 in 612 November 23, 612 November 29, 612 November
Week 49 in 612 November 30, 612 December 6, 612 November / December
Week 50 in 612 December 7, 612 December 13, 612 December
Week 51 in 612 December 14, 612 December 20, 612 December
Week 52 in 612 December 21, 612 December 27, 612 December
Week 53 in 612 December 28, 612 January 3, 613 December / January

Calendars 612

January 612
MoTuWeThFrSaSu
Week 112345
Week 26789101112
Week 313141516171819
Week 420212223242526
Week 52728293031
February 612
MoTuWeThFrSaSu
Week 512
Week 63456789
Week 710111213141516
Week 817181920212223
Week 9242526272829
March 612
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 612
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 612
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 612
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 612
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 612
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 612
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 612
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 612
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 612
MoTuWeThFrSaSu
Week 2123456
Week 5078910111213
Week 5114151617181920
Week 5221222324252627
Week 5328293031

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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 612 starts on December 30, 611 and ends on January 5, 612 (ISO 8601, Monday to Sunday). 612 has 53 ISO weeks, because it is a leap year that starts on a Wednesday.

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 612 have?

612 has 53 ISO weeks, because it is a leap year that starts on a Wednesday.

When does week 1 of 612 start?

Week 1 of 612 starts on December 30, 611 and ends on January 5, 612 (ISO 8601, Monday to Sunday).

When does the last week of 612 end?

Week 53 of 612 starts on December 28, 612 and ends on January 3, 613 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 612, 618, 624, 629, 635.

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.