Week numbers 5142

5142 has 53 ISO weeks, because 1 January 5142 falls on a Thursday. Week 1: Dec 29, 5141 – Jan 4, 5142 · Week 53: Dec 28, 5142 – Jan 3, 5143

5142 at a glance

Weeks in 514253
Week 1December 29, 5141 – January 4, 5142
Week 53December 28, 5142 – January 3, 5143
Days in 5142365
Leap yearNo

All Weeks in 5142

Week From To Month
Week 1 in 5142 December 29, 5141 January 4, 5142 December / January
Week 2 in 5142 January 5, 5142 January 11, 5142 January
Week 3 in 5142 January 12, 5142 January 18, 5142 January
Week 4 in 5142 January 19, 5142 January 25, 5142 January
Week 5 in 5142 January 26, 5142 February 1, 5142 January / February
Week 6 in 5142 February 2, 5142 February 8, 5142 February
Week 7 in 5142 February 9, 5142 February 15, 5142 February
Week 8 in 5142 February 16, 5142 February 22, 5142 February
Week 9 in 5142 February 23, 5142 March 1, 5142 February / March
Week 10 in 5142 March 2, 5142 March 8, 5142 March
Week 11 in 5142 March 9, 5142 March 15, 5142 March
Week 12 in 5142 March 16, 5142 March 22, 5142 March
Week 13 in 5142 March 23, 5142 March 29, 5142 March
Week 14 in 5142 March 30, 5142 April 5, 5142 March / April
Week 15 in 5142 April 6, 5142 April 12, 5142 April
Week 16 in 5142 April 13, 5142 April 19, 5142 April
Week 17 in 5142 April 20, 5142 April 26, 5142 April
Week 18 in 5142 April 27, 5142 May 3, 5142 April / May
Week 19 in 5142 May 4, 5142 May 10, 5142 May
Week 20 in 5142 May 11, 5142 May 17, 5142 May
Week 21 in 5142 May 18, 5142 May 24, 5142 May
Week 22 in 5142 May 25, 5142 May 31, 5142 May
Week 23 in 5142 June 1, 5142 June 7, 5142 June
Week 24 in 5142 June 8, 5142 June 14, 5142 June
Week 25 in 5142 June 15, 5142 June 21, 5142 June
Week 26 in 5142 June 22, 5142 June 28, 5142 June
Week 27 in 5142 June 29, 5142 July 5, 5142 June / July
Week 28 in 5142 July 6, 5142 July 12, 5142 July
Week 29 in 5142 July 13, 5142 July 19, 5142 July
Week 30 in 5142 July 20, 5142 July 26, 5142 July
Week 31 in 5142 July 27, 5142 August 2, 5142 July / August
Week 32 in 5142 August 3, 5142 August 9, 5142 August
Week 33 in 5142 August 10, 5142 August 16, 5142 August
Week 34 in 5142 August 17, 5142 August 23, 5142 August
Week 35 in 5142 August 24, 5142 August 30, 5142 August
Week 36 in 5142 August 31, 5142 September 6, 5142 August / September
Week 37 in 5142 September 7, 5142 September 13, 5142 September
Week 38 in 5142 September 14, 5142 September 20, 5142 September
Week 39 in 5142 September 21, 5142 September 27, 5142 September
Week 40 in 5142 September 28, 5142 October 4, 5142 September / October
Week 41 in 5142 October 5, 5142 October 11, 5142 October
Week 42 in 5142 October 12, 5142 October 18, 5142 October
Week 43 in 5142 October 19, 5142 October 25, 5142 October
Week 44 in 5142 October 26, 5142 November 1, 5142 October / November
Week 45 in 5142 November 2, 5142 November 8, 5142 November
Week 46 in 5142 November 9, 5142 November 15, 5142 November
Week 47 in 5142 November 16, 5142 November 22, 5142 November
Week 48 in 5142 November 23, 5142 November 29, 5142 November
Week 49 in 5142 November 30, 5142 December 6, 5142 November / December
Week 50 in 5142 December 7, 5142 December 13, 5142 December
Week 51 in 5142 December 14, 5142 December 20, 5142 December
Week 52 in 5142 December 21, 5142 December 27, 5142 December
Week 53 in 5142 December 28, 5142 January 3, 5143 December / January

Calendars 5142

January 5142
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 5142
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 5142
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 5142
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 5142
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 5142
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 5142
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 5142
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 5142
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 5142
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 5142
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 5142
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 5142 starts on December 29, 5141 and ends on January 4, 5142 (ISO 8601, Monday to Sunday). 5142 has 53 ISO weeks, because 1 January 5142 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 5142 have?

5142 has 53 ISO weeks, because 1 January 5142 falls on a Thursday.

When does week 1 of 5142 start?

Week 1 of 5142 starts on December 29, 5141 and ends on January 4, 5142 (ISO 8601, Monday to Sunday).

When does the last week of 5142 end?

Week 53 of 5142 starts on December 28, 5142 and ends on January 3, 5143 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 5142, 5148, 5153, 5159, 5164.

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.