Week numbers 144

144 has 53 ISO weeks, because it is a leap year that starts on a Wednesday. Week 1: Dec 30, 143 – Jan 5, 144 · Week 53: Dec 28, 144 – Jan 3, 145

144 at a glance

Weeks in 14453
Week 1December 30, 143 – January 5, 144
Week 53December 28, 144 – January 3, 145
Days in 144366
Leap yearYes

All Weeks in 144

Week From To Month
Week 1 in 144 December 30, 143 January 5, 144 December / January
Week 2 in 144 January 6, 144 January 12, 144 January
Week 3 in 144 January 13, 144 January 19, 144 January
Week 4 in 144 January 20, 144 January 26, 144 January
Week 5 in 144 January 27, 144 February 2, 144 January / February
Week 6 in 144 February 3, 144 February 9, 144 February
Week 7 in 144 February 10, 144 February 16, 144 February
Week 8 in 144 February 17, 144 February 23, 144 February
Week 9 in 144 February 24, 144 March 1, 144 February / March
Week 10 in 144 March 2, 144 March 8, 144 March
Week 11 in 144 March 9, 144 March 15, 144 March
Week 12 in 144 March 16, 144 March 22, 144 March
Week 13 in 144 March 23, 144 March 29, 144 March
Week 14 in 144 March 30, 144 April 5, 144 March / April
Week 15 in 144 April 6, 144 April 12, 144 April
Week 16 in 144 April 13, 144 April 19, 144 April
Week 17 in 144 April 20, 144 April 26, 144 April
Week 18 in 144 April 27, 144 May 3, 144 April / May
Week 19 in 144 May 4, 144 May 10, 144 May
Week 20 in 144 May 11, 144 May 17, 144 May
Week 21 in 144 May 18, 144 May 24, 144 May
Week 22 in 144 May 25, 144 May 31, 144 May
Week 23 in 144 June 1, 144 June 7, 144 June
Week 24 in 144 June 8, 144 June 14, 144 June
Week 25 in 144 June 15, 144 June 21, 144 June
Week 26 in 144 June 22, 144 June 28, 144 June
Week 27 in 144 June 29, 144 July 5, 144 June / July
Week 28 in 144 July 6, 144 July 12, 144 July
Week 29 in 144 July 13, 144 July 19, 144 July
Week 30 in 144 July 20, 144 July 26, 144 July
Week 31 in 144 July 27, 144 August 2, 144 July / August
Week 32 in 144 August 3, 144 August 9, 144 August
Week 33 in 144 August 10, 144 August 16, 144 August
Week 34 in 144 August 17, 144 August 23, 144 August
Week 35 in 144 August 24, 144 August 30, 144 August
Week 36 in 144 August 31, 144 September 6, 144 August / September
Week 37 in 144 September 7, 144 September 13, 144 September
Week 38 in 144 September 14, 144 September 20, 144 September
Week 39 in 144 September 21, 144 September 27, 144 September
Week 40 in 144 September 28, 144 October 4, 144 September / October
Week 41 in 144 October 5, 144 October 11, 144 October
Week 42 in 144 October 12, 144 October 18, 144 October
Week 43 in 144 October 19, 144 October 25, 144 October
Week 44 in 144 October 26, 144 November 1, 144 October / November
Week 45 in 144 November 2, 144 November 8, 144 November
Week 46 in 144 November 9, 144 November 15, 144 November
Week 47 in 144 November 16, 144 November 22, 144 November
Week 48 in 144 November 23, 144 November 29, 144 November
Week 49 in 144 November 30, 144 December 6, 144 November / December
Week 50 in 144 December 7, 144 December 13, 144 December
Week 51 in 144 December 14, 144 December 20, 144 December
Week 52 in 144 December 21, 144 December 27, 144 December
Week 53 in 144 December 28, 144 January 3, 145 December / January

Calendars 144

January 144
MoTuWeThFrSaSu
Week 112345
Week 26789101112
Week 313141516171819
Week 420212223242526
Week 52728293031
February 144
MoTuWeThFrSaSu
Week 512
Week 63456789
Week 710111213141516
Week 817181920212223
Week 9242526272829
March 144
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 144
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 144
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 144
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 144
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 144
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 144
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 144
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 144
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 144
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 144 starts on December 30, 143 and ends on January 5, 144 (ISO 8601, Monday to Sunday). 144 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 144 have?

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

When does week 1 of 144 start?

Week 1 of 144 starts on December 30, 143 and ends on January 5, 144 (ISO 8601, Monday to Sunday).

When does the last week of 144 end?

Week 53 of 144 starts on December 28, 144 and ends on January 3, 145 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 144, 150, 156, 161, 167.

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.