Week numbers 899

899 has 53 ISO weeks, because 1 January 899 falls on a Thursday. Week 1: Dec 29, 898 – Jan 4, 899 · Week 53: Dec 28, 899 – Jan 3, 900

899 at a glance

Weeks in 89953
Week 1December 29, 898 – January 4, 899
Week 53December 28, 899 – January 3, 900
Days in 899365
Leap yearNo

All Weeks in 899

Week From To Month
Week 1 in 899 December 29, 898 January 4, 899 December / January
Week 2 in 899 January 5, 899 January 11, 899 January
Week 3 in 899 January 12, 899 January 18, 899 January
Week 4 in 899 January 19, 899 January 25, 899 January
Week 5 in 899 January 26, 899 February 1, 899 January / February
Week 6 in 899 February 2, 899 February 8, 899 February
Week 7 in 899 February 9, 899 February 15, 899 February
Week 8 in 899 February 16, 899 February 22, 899 February
Week 9 in 899 February 23, 899 March 1, 899 February / March
Week 10 in 899 March 2, 899 March 8, 899 March
Week 11 in 899 March 9, 899 March 15, 899 March
Week 12 in 899 March 16, 899 March 22, 899 March
Week 13 in 899 March 23, 899 March 29, 899 March
Week 14 in 899 March 30, 899 April 5, 899 March / April
Week 15 in 899 April 6, 899 April 12, 899 April
Week 16 in 899 April 13, 899 April 19, 899 April
Week 17 in 899 April 20, 899 April 26, 899 April
Week 18 in 899 April 27, 899 May 3, 899 April / May
Week 19 in 899 May 4, 899 May 10, 899 May
Week 20 in 899 May 11, 899 May 17, 899 May
Week 21 in 899 May 18, 899 May 24, 899 May
Week 22 in 899 May 25, 899 May 31, 899 May
Week 23 in 899 June 1, 899 June 7, 899 June
Week 24 in 899 June 8, 899 June 14, 899 June
Week 25 in 899 June 15, 899 June 21, 899 June
Week 26 in 899 June 22, 899 June 28, 899 June
Week 27 in 899 June 29, 899 July 5, 899 June / July
Week 28 in 899 July 6, 899 July 12, 899 July
Week 29 in 899 July 13, 899 July 19, 899 July
Week 30 in 899 July 20, 899 July 26, 899 July
Week 31 in 899 July 27, 899 August 2, 899 July / August
Week 32 in 899 August 3, 899 August 9, 899 August
Week 33 in 899 August 10, 899 August 16, 899 August
Week 34 in 899 August 17, 899 August 23, 899 August
Week 35 in 899 August 24, 899 August 30, 899 August
Week 36 in 899 August 31, 899 September 6, 899 August / September
Week 37 in 899 September 7, 899 September 13, 899 September
Week 38 in 899 September 14, 899 September 20, 899 September
Week 39 in 899 September 21, 899 September 27, 899 September
Week 40 in 899 September 28, 899 October 4, 899 September / October
Week 41 in 899 October 5, 899 October 11, 899 October
Week 42 in 899 October 12, 899 October 18, 899 October
Week 43 in 899 October 19, 899 October 25, 899 October
Week 44 in 899 October 26, 899 November 1, 899 October / November
Week 45 in 899 November 2, 899 November 8, 899 November
Week 46 in 899 November 9, 899 November 15, 899 November
Week 47 in 899 November 16, 899 November 22, 899 November
Week 48 in 899 November 23, 899 November 29, 899 November
Week 49 in 899 November 30, 899 December 6, 899 November / December
Week 50 in 899 December 7, 899 December 13, 899 December
Week 51 in 899 December 14, 899 December 20, 899 December
Week 52 in 899 December 21, 899 December 27, 899 December
Week 53 in 899 December 28, 899 January 3, 900 December / January

Calendars 899

January 899
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 899
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 899
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 899
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 899
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 899
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 899
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 899
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 899
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 899
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 899
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 899
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 899 starts on December 29, 898 and ends on January 4, 899 (ISO 8601, Monday to Sunday). 899 has 53 ISO weeks, because 1 January 899 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 899 have?

899 has 53 ISO weeks, because 1 January 899 falls on a Thursday.

When does week 1 of 899 start?

Week 1 of 899 starts on December 29, 898 and ends on January 4, 899 (ISO 8601, Monday to Sunday).

When does the last week of 899 end?

Week 53 of 899 starts on December 28, 899 and ends on January 3, 900 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 899, 905, 911, 916, 922.

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.