Week numbers 689

689 has 52 ISO weeks. Week 1: Dec 31, 688 – Jan 6, 689 · Week 52: Dec 23 – 29

689 at a glance

Weeks in 68952
Week 1December 31, 688 – January 6, 689
Week 52December 23, 689 – December 29, 689
Days in 689365
Leap yearNo

All Weeks in 689

Week From To Month
Week 1 in 689 December 31, 688 January 6, 689 December / January
Week 2 in 689 January 7, 689 January 13, 689 January
Week 3 in 689 January 14, 689 January 20, 689 January
Week 4 in 689 January 21, 689 January 27, 689 January
Week 5 in 689 January 28, 689 February 3, 689 January / February
Week 6 in 689 February 4, 689 February 10, 689 February
Week 7 in 689 February 11, 689 February 17, 689 February
Week 8 in 689 February 18, 689 February 24, 689 February
Week 9 in 689 February 25, 689 March 3, 689 February / March
Week 10 in 689 March 4, 689 March 10, 689 March
Week 11 in 689 March 11, 689 March 17, 689 March
Week 12 in 689 March 18, 689 March 24, 689 March
Week 13 in 689 March 25, 689 March 31, 689 March
Week 14 in 689 April 1, 689 April 7, 689 April
Week 15 in 689 April 8, 689 April 14, 689 April
Week 16 in 689 April 15, 689 April 21, 689 April
Week 17 in 689 April 22, 689 April 28, 689 April
Week 18 in 689 April 29, 689 May 5, 689 April / May
Week 19 in 689 May 6, 689 May 12, 689 May
Week 20 in 689 May 13, 689 May 19, 689 May
Week 21 in 689 May 20, 689 May 26, 689 May
Week 22 in 689 May 27, 689 June 2, 689 May / June
Week 23 in 689 June 3, 689 June 9, 689 June
Week 24 in 689 June 10, 689 June 16, 689 June
Week 25 in 689 June 17, 689 June 23, 689 June
Week 26 in 689 June 24, 689 June 30, 689 June
Week 27 in 689 July 1, 689 July 7, 689 July
Week 28 in 689 July 8, 689 July 14, 689 July
Week 29 in 689 July 15, 689 July 21, 689 July
Week 30 in 689 July 22, 689 July 28, 689 July
Week 31 in 689 July 29, 689 August 4, 689 July / August
Week 32 in 689 August 5, 689 August 11, 689 August
Week 33 in 689 August 12, 689 August 18, 689 August
Week 34 in 689 August 19, 689 August 25, 689 August
Week 35 in 689 August 26, 689 September 1, 689 August / September
Week 36 in 689 September 2, 689 September 8, 689 September
Week 37 in 689 September 9, 689 September 15, 689 September
Week 38 in 689 September 16, 689 September 22, 689 September
Week 39 in 689 September 23, 689 September 29, 689 September
Week 40 in 689 September 30, 689 October 6, 689 September / October
Week 41 in 689 October 7, 689 October 13, 689 October
Week 42 in 689 October 14, 689 October 20, 689 October
Week 43 in 689 October 21, 689 October 27, 689 October
Week 44 in 689 October 28, 689 November 3, 689 October / November
Week 45 in 689 November 4, 689 November 10, 689 November
Week 46 in 689 November 11, 689 November 17, 689 November
Week 47 in 689 November 18, 689 November 24, 689 November
Week 48 in 689 November 25, 689 December 1, 689 November / December
Week 49 in 689 December 2, 689 December 8, 689 December
Week 50 in 689 December 9, 689 December 15, 689 December
Week 51 in 689 December 16, 689 December 22, 689 December
Week 52 in 689 December 23, 689 December 29, 689 December

Calendars 689

January 689
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 689
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 925262728
March 689
MoTuWeThFrSaSu
Week 9123
Week 1045678910
Week 1111121314151617
Week 1218192021222324
Week 1325262728293031
April 689
MoTuWeThFrSaSu
Week 141234567
Week 15891011121314
Week 1615161718192021
Week 1722232425262728
Week 182930
May 689
MoTuWeThFrSaSu
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
June 689
MoTuWeThFrSaSu
Week 2212
Week 233456789
Week 2410111213141516
Week 2517181920212223
Week 2624252627282930
July 689
MoTuWeThFrSaSu
Week 271234567
Week 28891011121314
Week 2915161718192021
Week 3022232425262728
Week 31293031
August 689
MoTuWeThFrSaSu
Week 311234
Week 32567891011
Week 3312131415161718
Week 3419202122232425
Week 35262728293031
September 689
MoTuWeThFrSaSu
Week 351
Week 362345678
Week 379101112131415
Week 3816171819202122
Week 3923242526272829
Week 4030
October 689
MoTuWeThFrSaSu
Week 40123456
Week 4178910111213
Week 4214151617181920
Week 4321222324252627
Week 4428293031
November 689
MoTuWeThFrSaSu
Week 44123
Week 4545678910
Week 4611121314151617
Week 4718192021222324
Week 48252627282930
December 689
MoTuWeThFrSaSu
Week 21
Week 492345678
Week 509101112131415
Week 5116171819202122
Week 5223242526272829
Week 13031

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 689 starts on December 31, 688 and ends on January 6, 689 (ISO 8601, Monday to Sunday). 689 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 689 have?

689 has 52 ISO weeks.

When does week 1 of 689 start?

Week 1 of 689 starts on December 31, 688 and ends on January 6, 689 (ISO 8601, Monday to Sunday).

When does the last week of 689 end?

Week 52 of 689 starts on December 23, 689 and ends on December 29, 689 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 691, 696, 703, 708, 714.

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.