Week numbers 160

160 has 52 ISO weeks. Week 1: Dec 31, 159 – Jan 6, 160 · Week 52: Dec 22 – 28

160 at a glance

Weeks in 16052
Week 1December 31, 159 – January 6, 160
Week 52December 22, 160 – December 28, 160
Days in 160366
Leap yearYes

All Weeks in 160

Week From To Month
Week 1 in 160 December 31, 159 January 6, 160 December / January
Week 2 in 160 January 7, 160 January 13, 160 January
Week 3 in 160 January 14, 160 January 20, 160 January
Week 4 in 160 January 21, 160 January 27, 160 January
Week 5 in 160 January 28, 160 February 3, 160 January / February
Week 6 in 160 February 4, 160 February 10, 160 February
Week 7 in 160 February 11, 160 February 17, 160 February
Week 8 in 160 February 18, 160 February 24, 160 February
Week 9 in 160 February 25, 160 March 2, 160 February / March
Week 10 in 160 March 3, 160 March 9, 160 March
Week 11 in 160 March 10, 160 March 16, 160 March
Week 12 in 160 March 17, 160 March 23, 160 March
Week 13 in 160 March 24, 160 March 30, 160 March
Week 14 in 160 March 31, 160 April 6, 160 March / April
Week 15 in 160 April 7, 160 April 13, 160 April
Week 16 in 160 April 14, 160 April 20, 160 April
Week 17 in 160 April 21, 160 April 27, 160 April
Week 18 in 160 April 28, 160 May 4, 160 April / May
Week 19 in 160 May 5, 160 May 11, 160 May
Week 20 in 160 May 12, 160 May 18, 160 May
Week 21 in 160 May 19, 160 May 25, 160 May
Week 22 in 160 May 26, 160 June 1, 160 May / June
Week 23 in 160 June 2, 160 June 8, 160 June
Week 24 in 160 June 9, 160 June 15, 160 June
Week 25 in 160 June 16, 160 June 22, 160 June
Week 26 in 160 June 23, 160 June 29, 160 June
Week 27 in 160 June 30, 160 July 6, 160 June / July
Week 28 in 160 July 7, 160 July 13, 160 July
Week 29 in 160 July 14, 160 July 20, 160 July
Week 30 in 160 July 21, 160 July 27, 160 July
Week 31 in 160 July 28, 160 August 3, 160 July / August
Week 32 in 160 August 4, 160 August 10, 160 August
Week 33 in 160 August 11, 160 August 17, 160 August
Week 34 in 160 August 18, 160 August 24, 160 August
Week 35 in 160 August 25, 160 August 31, 160 August
Week 36 in 160 September 1, 160 September 7, 160 September
Week 37 in 160 September 8, 160 September 14, 160 September
Week 38 in 160 September 15, 160 September 21, 160 September
Week 39 in 160 September 22, 160 September 28, 160 September
Week 40 in 160 September 29, 160 October 5, 160 September / October
Week 41 in 160 October 6, 160 October 12, 160 October
Week 42 in 160 October 13, 160 October 19, 160 October
Week 43 in 160 October 20, 160 October 26, 160 October
Week 44 in 160 October 27, 160 November 2, 160 October / November
Week 45 in 160 November 3, 160 November 9, 160 November
Week 46 in 160 November 10, 160 November 16, 160 November
Week 47 in 160 November 17, 160 November 23, 160 November
Week 48 in 160 November 24, 160 November 30, 160 November
Week 49 in 160 December 1, 160 December 7, 160 December
Week 50 in 160 December 8, 160 December 14, 160 December
Week 51 in 160 December 15, 160 December 21, 160 December
Week 52 in 160 December 22, 160 December 28, 160 December

Calendars 160

January 160
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 160
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 92526272829
March 160
MoTuWeThFrSaSu
Week 912
Week 103456789
Week 1110111213141516
Week 1217181920212223
Week 1324252627282930
Week 1431
April 160
MoTuWeThFrSaSu
Week 14123456
Week 1578910111213
Week 1614151617181920
Week 1721222324252627
Week 18282930
May 160
MoTuWeThFrSaSu
Week 181234
Week 19567891011
Week 2012131415161718
Week 2119202122232425
Week 22262728293031
June 160
MoTuWeThFrSaSu
Week 221
Week 232345678
Week 249101112131415
Week 2516171819202122
Week 2623242526272829
Week 2730
July 160
MoTuWeThFrSaSu
Week 27123456
Week 2878910111213
Week 2914151617181920
Week 3021222324252627
Week 3128293031
August 160
MoTuWeThFrSaSu
Week 31123
Week 3245678910
Week 3311121314151617
Week 3418192021222324
Week 3525262728293031
September 160
MoTuWeThFrSaSu
Week 361234567
Week 37891011121314
Week 3815161718192021
Week 3922232425262728
Week 402930
October 160
MoTuWeThFrSaSu
Week 4012345
Week 416789101112
Week 4213141516171819
Week 4320212223242526
Week 442728293031
November 160
MoTuWeThFrSaSu
Week 4412
Week 453456789
Week 4610111213141516
Week 4717181920212223
Week 4824252627282930
December 160
MoTuWeThFrSaSu
Week 491234567
Week 50891011121314
Week 5115161718192021
Week 5222232425262728
Week 1293031

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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 160 starts on December 31, 159 and ends on January 6, 160 (ISO 8601, Monday to Sunday). 160 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 160 have?

160 has 52 ISO weeks.

When does week 1 of 160 start?

Week 1 of 160 starts on December 31, 159 and ends on January 6, 160 (ISO 8601, Monday to Sunday).

When does the last week of 160 end?

Week 52 of 160 starts on December 22, 160 and ends on December 28, 160 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 161, 167, 172, 178, 184.

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.