Week numbers 73

73 has 52 ISO weeks. Week 1: Jan 2 – 8 · Week 52: Dec 25 – 31

73 at a glance

Weeks in 7352
Week 1January 2, 73 – January 8, 73
Week 52December 25, 73 – December 31, 73
Days in 73365
Leap yearNo

All Weeks in 73

Week From To Month
Week 1 in 73 January 2, 73 January 8, 73 January
Week 2 in 73 January 9, 73 January 15, 73 January
Week 3 in 73 January 16, 73 January 22, 73 January
Week 4 in 73 January 23, 73 January 29, 73 January
Week 5 in 73 January 30, 73 February 5, 73 January / February
Week 6 in 73 February 6, 73 February 12, 73 February
Week 7 in 73 February 13, 73 February 19, 73 February
Week 8 in 73 February 20, 73 February 26, 73 February
Week 9 in 73 February 27, 73 March 5, 73 February / March
Week 10 in 73 March 6, 73 March 12, 73 March
Week 11 in 73 March 13, 73 March 19, 73 March
Week 12 in 73 March 20, 73 March 26, 73 March
Week 13 in 73 March 27, 73 April 2, 73 March / April
Week 14 in 73 April 3, 73 April 9, 73 April
Week 15 in 73 April 10, 73 April 16, 73 April
Week 16 in 73 April 17, 73 April 23, 73 April
Week 17 in 73 April 24, 73 April 30, 73 April
Week 18 in 73 May 1, 73 May 7, 73 May
Week 19 in 73 May 8, 73 May 14, 73 May
Week 20 in 73 May 15, 73 May 21, 73 May
Week 21 in 73 May 22, 73 May 28, 73 May
Week 22 in 73 May 29, 73 June 4, 73 May / June
Week 23 in 73 June 5, 73 June 11, 73 June
Week 24 in 73 June 12, 73 June 18, 73 June
Week 25 in 73 June 19, 73 June 25, 73 June
Week 26 in 73 June 26, 73 July 2, 73 June / July
Week 27 in 73 July 3, 73 July 9, 73 July
Week 28 in 73 July 10, 73 July 16, 73 July
Week 29 in 73 July 17, 73 July 23, 73 July
Week 30 in 73 July 24, 73 July 30, 73 July
Week 31 in 73 July 31, 73 August 6, 73 July / August
Week 32 in 73 August 7, 73 August 13, 73 August
Week 33 in 73 August 14, 73 August 20, 73 August
Week 34 in 73 August 21, 73 August 27, 73 August
Week 35 in 73 August 28, 73 September 3, 73 August / September
Week 36 in 73 September 4, 73 September 10, 73 September
Week 37 in 73 September 11, 73 September 17, 73 September
Week 38 in 73 September 18, 73 September 24, 73 September
Week 39 in 73 September 25, 73 October 1, 73 September / October
Week 40 in 73 October 2, 73 October 8, 73 October
Week 41 in 73 October 9, 73 October 15, 73 October
Week 42 in 73 October 16, 73 October 22, 73 October
Week 43 in 73 October 23, 73 October 29, 73 October
Week 44 in 73 October 30, 73 November 5, 73 October / November
Week 45 in 73 November 6, 73 November 12, 73 November
Week 46 in 73 November 13, 73 November 19, 73 November
Week 47 in 73 November 20, 73 November 26, 73 November
Week 48 in 73 November 27, 73 December 3, 73 November / December
Week 49 in 73 December 4, 73 December 10, 73 December
Week 50 in 73 December 11, 73 December 17, 73 December
Week 51 in 73 December 18, 73 December 24, 73 December
Week 52 in 73 December 25, 73 December 31, 73 December

Calendars 73

January 73
MoTuWeThFrSaSu
Week 521
Week 12345678
Week 29101112131415
Week 316171819202122
Week 423242526272829
Week 53031
February 73
MoTuWeThFrSaSu
Week 512345
Week 66789101112
Week 713141516171819
Week 820212223242526
Week 92728
March 73
MoTuWeThFrSaSu
Week 912345
Week 106789101112
Week 1113141516171819
Week 1220212223242526
Week 132728293031
April 73
MoTuWeThFrSaSu
Week 1312
Week 143456789
Week 1510111213141516
Week 1617181920212223
Week 1724252627282930
May 73
MoTuWeThFrSaSu
Week 181234567
Week 19891011121314
Week 2015161718192021
Week 2122232425262728
Week 22293031
June 73
MoTuWeThFrSaSu
Week 221234
Week 23567891011
Week 2412131415161718
Week 2519202122232425
Week 262627282930
July 73
MoTuWeThFrSaSu
Week 2612
Week 273456789
Week 2810111213141516
Week 2917181920212223
Week 3024252627282930
Week 3131
August 73
MoTuWeThFrSaSu
Week 31123456
Week 3278910111213
Week 3314151617181920
Week 3421222324252627
Week 3528293031
September 73
MoTuWeThFrSaSu
Week 35123
Week 3645678910
Week 3711121314151617
Week 3818192021222324
Week 39252627282930
October 73
MoTuWeThFrSaSu
Week 391
Week 402345678
Week 419101112131415
Week 4216171819202122
Week 4323242526272829
Week 443031
November 73
MoTuWeThFrSaSu
Week 4412345
Week 456789101112
Week 4613141516171819
Week 4720212223242526
Week 4827282930
December 73
MoTuWeThFrSaSu
Week 1123
Week 4945678910
Week 5011121314151617
Week 5118192021222324
Week 5225262728293031

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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 73 starts on January 2, 73 and ends on January 8, 73 (ISO 8601, Monday to Sunday). 73 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 73 have?

73 has 52 ISO weeks.

When does week 1 of 73 start?

Week 1 of 73 starts on January 2, 73 and ends on January 8, 73 (ISO 8601, Monday to Sunday).

When does the last week of 73 end?

Week 52 of 73 starts on December 25, 73 and ends on December 31, 73 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 76, 82, 88, 93, 99.

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.