Week numbers 189

189 has 53 ISO weeks, because 1 January 189 falls on a Thursday. Week 1: Dec 29, 188 – Jan 4, 189 · Week 53: Dec 28, 189 – Jan 3, 190

189 at a glance

Weeks in 18953
Week 1December 29, 188 – January 4, 189
Week 53December 28, 189 – January 3, 190
Days in 189365
Leap yearNo

All Weeks in 189

Week From To Month
Week 1 in 189 December 29, 188 January 4, 189 December / January
Week 2 in 189 January 5, 189 January 11, 189 January
Week 3 in 189 January 12, 189 January 18, 189 January
Week 4 in 189 January 19, 189 January 25, 189 January
Week 5 in 189 January 26, 189 February 1, 189 January / February
Week 6 in 189 February 2, 189 February 8, 189 February
Week 7 in 189 February 9, 189 February 15, 189 February
Week 8 in 189 February 16, 189 February 22, 189 February
Week 9 in 189 February 23, 189 March 1, 189 February / March
Week 10 in 189 March 2, 189 March 8, 189 March
Week 11 in 189 March 9, 189 March 15, 189 March
Week 12 in 189 March 16, 189 March 22, 189 March
Week 13 in 189 March 23, 189 March 29, 189 March
Week 14 in 189 March 30, 189 April 5, 189 March / April
Week 15 in 189 April 6, 189 April 12, 189 April
Week 16 in 189 April 13, 189 April 19, 189 April
Week 17 in 189 April 20, 189 April 26, 189 April
Week 18 in 189 April 27, 189 May 3, 189 April / May
Week 19 in 189 May 4, 189 May 10, 189 May
Week 20 in 189 May 11, 189 May 17, 189 May
Week 21 in 189 May 18, 189 May 24, 189 May
Week 22 in 189 May 25, 189 May 31, 189 May
Week 23 in 189 June 1, 189 June 7, 189 June
Week 24 in 189 June 8, 189 June 14, 189 June
Week 25 in 189 June 15, 189 June 21, 189 June
Week 26 in 189 June 22, 189 June 28, 189 June
Week 27 in 189 June 29, 189 July 5, 189 June / July
Week 28 in 189 July 6, 189 July 12, 189 July
Week 29 in 189 July 13, 189 July 19, 189 July
Week 30 in 189 July 20, 189 July 26, 189 July
Week 31 in 189 July 27, 189 August 2, 189 July / August
Week 32 in 189 August 3, 189 August 9, 189 August
Week 33 in 189 August 10, 189 August 16, 189 August
Week 34 in 189 August 17, 189 August 23, 189 August
Week 35 in 189 August 24, 189 August 30, 189 August
Week 36 in 189 August 31, 189 September 6, 189 August / September
Week 37 in 189 September 7, 189 September 13, 189 September
Week 38 in 189 September 14, 189 September 20, 189 September
Week 39 in 189 September 21, 189 September 27, 189 September
Week 40 in 189 September 28, 189 October 4, 189 September / October
Week 41 in 189 October 5, 189 October 11, 189 October
Week 42 in 189 October 12, 189 October 18, 189 October
Week 43 in 189 October 19, 189 October 25, 189 October
Week 44 in 189 October 26, 189 November 1, 189 October / November
Week 45 in 189 November 2, 189 November 8, 189 November
Week 46 in 189 November 9, 189 November 15, 189 November
Week 47 in 189 November 16, 189 November 22, 189 November
Week 48 in 189 November 23, 189 November 29, 189 November
Week 49 in 189 November 30, 189 December 6, 189 November / December
Week 50 in 189 December 7, 189 December 13, 189 December
Week 51 in 189 December 14, 189 December 20, 189 December
Week 52 in 189 December 21, 189 December 27, 189 December
Week 53 in 189 December 28, 189 January 3, 190 December / January

Calendars 189

January 189
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 189
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 189
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 189
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 189
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 189
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 189
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 189
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 189
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 189
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 189
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 189
MoTuWeThFrSaSu
Week 2123456
Week 5078910111213
Week 5114151617181920
Week 5221222324252627
Week 5328293031

Download Calendar in printable A4 PDF

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 189 starts on December 29, 188 and ends on January 4, 189 (ISO 8601, Monday to Sunday). 189 has 53 ISO weeks, because 1 January 189 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 189 have?

189 has 53 ISO weeks, because 1 January 189 falls on a Thursday.

When does week 1 of 189 start?

Week 1 of 189 starts on December 29, 188 and ends on January 4, 189 (ISO 8601, Monday to Sunday).

When does the last week of 189 end?

Week 53 of 189 starts on December 28, 189 and ends on January 3, 190 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 189, 195, 201, 207, 212.

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.