Week numbers 167

167 has 53 ISO weeks, because 1 January 167 falls on a Thursday. Week 1: Dec 29, 166 – Jan 4, 167 · Week 53: Dec 28, 167 – Jan 3, 168

167 at a glance

Weeks in 16753
Week 1December 29, 166 – January 4, 167
Week 53December 28, 167 – January 3, 168
Days in 167365
Leap yearNo

All Weeks in 167

Week From To Month
Week 1 in 167 December 29, 166 January 4, 167 December / January
Week 2 in 167 January 5, 167 January 11, 167 January
Week 3 in 167 January 12, 167 January 18, 167 January
Week 4 in 167 January 19, 167 January 25, 167 January
Week 5 in 167 January 26, 167 February 1, 167 January / February
Week 6 in 167 February 2, 167 February 8, 167 February
Week 7 in 167 February 9, 167 February 15, 167 February
Week 8 in 167 February 16, 167 February 22, 167 February
Week 9 in 167 February 23, 167 March 1, 167 February / March
Week 10 in 167 March 2, 167 March 8, 167 March
Week 11 in 167 March 9, 167 March 15, 167 March
Week 12 in 167 March 16, 167 March 22, 167 March
Week 13 in 167 March 23, 167 March 29, 167 March
Week 14 in 167 March 30, 167 April 5, 167 March / April
Week 15 in 167 April 6, 167 April 12, 167 April
Week 16 in 167 April 13, 167 April 19, 167 April
Week 17 in 167 April 20, 167 April 26, 167 April
Week 18 in 167 April 27, 167 May 3, 167 April / May
Week 19 in 167 May 4, 167 May 10, 167 May
Week 20 in 167 May 11, 167 May 17, 167 May
Week 21 in 167 May 18, 167 May 24, 167 May
Week 22 in 167 May 25, 167 May 31, 167 May
Week 23 in 167 June 1, 167 June 7, 167 June
Week 24 in 167 June 8, 167 June 14, 167 June
Week 25 in 167 June 15, 167 June 21, 167 June
Week 26 in 167 June 22, 167 June 28, 167 June
Week 27 in 167 June 29, 167 July 5, 167 June / July
Week 28 in 167 July 6, 167 July 12, 167 July
Week 29 in 167 July 13, 167 July 19, 167 July
Week 30 in 167 July 20, 167 July 26, 167 July
Week 31 in 167 July 27, 167 August 2, 167 July / August
Week 32 in 167 August 3, 167 August 9, 167 August
Week 33 in 167 August 10, 167 August 16, 167 August
Week 34 in 167 August 17, 167 August 23, 167 August
Week 35 in 167 August 24, 167 August 30, 167 August
Week 36 in 167 August 31, 167 September 6, 167 August / September
Week 37 in 167 September 7, 167 September 13, 167 September
Week 38 in 167 September 14, 167 September 20, 167 September
Week 39 in 167 September 21, 167 September 27, 167 September
Week 40 in 167 September 28, 167 October 4, 167 September / October
Week 41 in 167 October 5, 167 October 11, 167 October
Week 42 in 167 October 12, 167 October 18, 167 October
Week 43 in 167 October 19, 167 October 25, 167 October
Week 44 in 167 October 26, 167 November 1, 167 October / November
Week 45 in 167 November 2, 167 November 8, 167 November
Week 46 in 167 November 9, 167 November 15, 167 November
Week 47 in 167 November 16, 167 November 22, 167 November
Week 48 in 167 November 23, 167 November 29, 167 November
Week 49 in 167 November 30, 167 December 6, 167 November / December
Week 50 in 167 December 7, 167 December 13, 167 December
Week 51 in 167 December 14, 167 December 20, 167 December
Week 52 in 167 December 21, 167 December 27, 167 December
Week 53 in 167 December 28, 167 January 3, 168 December / January

Calendars 167

January 167
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 167
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 167
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 167
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 167
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 167
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 167
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 167
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 167
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 167
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 167
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 167
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 167 starts on December 29, 166 and ends on January 4, 167 (ISO 8601, Monday to Sunday). 167 has 53 ISO weeks, because 1 January 167 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 167 have?

167 has 53 ISO weeks, because 1 January 167 falls on a Thursday.

When does week 1 of 167 start?

Week 1 of 167 starts on December 29, 166 and ends on January 4, 167 (ISO 8601, Monday to Sunday).

When does the last week of 167 end?

Week 53 of 167 starts on December 28, 167 and ends on January 3, 168 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 167, 172, 178, 184, 189.

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.