Week numbers 688

688 has 52 ISO weeks. Week 1: Jan 2 – 8 · Week 52: Dec 24 – 30

688 at a glance

Weeks in 68852
Week 1January 2, 688 – January 8, 688
Week 52December 24, 688 – December 30, 688
Days in 688366
Leap yearYes

All Weeks in 688

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

Calendars 688

January 688
MoTuWeThFrSaSu
Week 521
Week 12345678
Week 29101112131415
Week 316171819202122
Week 423242526272829
Week 53031
February 688
MoTuWeThFrSaSu
Week 512345
Week 66789101112
Week 713141516171819
Week 820212223242526
Week 9272829
March 688
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 688
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 688
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 688
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 688
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 688
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 688
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 688
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 688
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 688
MoTuWeThFrSaSu
Week 112
Week 493456789
Week 5010111213141516
Week 5117181920212223
Week 5224252627282930
Week 131

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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 688 starts on January 2, 688 and ends on January 8, 688 (ISO 8601, Monday to Sunday). 688 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 688 have?

688 has 52 ISO weeks.

When does week 1 of 688 start?

Week 1 of 688 starts on January 2, 688 and ends on January 8, 688 (ISO 8601, Monday to Sunday).

When does the last week of 688 end?

Week 52 of 688 starts on December 24, 688 and ends on December 30, 688 (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.