Week numbers 838

838 has 52 ISO weeks. Week 1: Jan 4 – 10 · Week 52: Dec 27, 838 – Jan 2, 839

838 at a glance

Weeks in 83852
Week 1January 4, 838 – January 10, 838
Week 52December 27, 838 – January 2, 839
Days in 838365
Leap yearNo

All Weeks in 838

Week From To Month
Week 1 in 838 January 4, 838 January 10, 838 January
Week 2 in 838 January 11, 838 January 17, 838 January
Week 3 in 838 January 18, 838 January 24, 838 January
Week 4 in 838 January 25, 838 January 31, 838 January
Week 5 in 838 February 1, 838 February 7, 838 February
Week 6 in 838 February 8, 838 February 14, 838 February
Week 7 in 838 February 15, 838 February 21, 838 February
Week 8 in 838 February 22, 838 February 28, 838 February
Week 9 in 838 March 1, 838 March 7, 838 March
Week 10 in 838 March 8, 838 March 14, 838 March
Week 11 in 838 March 15, 838 March 21, 838 March
Week 12 in 838 March 22, 838 March 28, 838 March
Week 13 in 838 March 29, 838 April 4, 838 March / April
Week 14 in 838 April 5, 838 April 11, 838 April
Week 15 in 838 April 12, 838 April 18, 838 April
Week 16 in 838 April 19, 838 April 25, 838 April
Week 17 in 838 April 26, 838 May 2, 838 April / May
Week 18 in 838 May 3, 838 May 9, 838 May
Week 19 in 838 May 10, 838 May 16, 838 May
Week 20 in 838 May 17, 838 May 23, 838 May
Week 21 in 838 May 24, 838 May 30, 838 May
Week 22 in 838 May 31, 838 June 6, 838 May / June
Week 23 in 838 June 7, 838 June 13, 838 June
Week 24 in 838 June 14, 838 June 20, 838 June
Week 25 in 838 June 21, 838 June 27, 838 June
Week 26 in 838 June 28, 838 July 4, 838 June / July
Week 27 in 838 July 5, 838 July 11, 838 July
Week 28 in 838 July 12, 838 July 18, 838 July
Week 29 in 838 July 19, 838 July 25, 838 July
Week 30 in 838 July 26, 838 August 1, 838 July / August
Week 31 in 838 August 2, 838 August 8, 838 August
Week 32 in 838 August 9, 838 August 15, 838 August
Week 33 in 838 August 16, 838 August 22, 838 August
Week 34 in 838 August 23, 838 August 29, 838 August
Week 35 in 838 August 30, 838 September 5, 838 August / September
Week 36 in 838 September 6, 838 September 12, 838 September
Week 37 in 838 September 13, 838 September 19, 838 September
Week 38 in 838 September 20, 838 September 26, 838 September
Week 39 in 838 September 27, 838 October 3, 838 September / October
Week 40 in 838 October 4, 838 October 10, 838 October
Week 41 in 838 October 11, 838 October 17, 838 October
Week 42 in 838 October 18, 838 October 24, 838 October
Week 43 in 838 October 25, 838 October 31, 838 October
Week 44 in 838 November 1, 838 November 7, 838 November
Week 45 in 838 November 8, 838 November 14, 838 November
Week 46 in 838 November 15, 838 November 21, 838 November
Week 47 in 838 November 22, 838 November 28, 838 November
Week 48 in 838 November 29, 838 December 5, 838 November / December
Week 49 in 838 December 6, 838 December 12, 838 December
Week 50 in 838 December 13, 838 December 19, 838 December
Week 51 in 838 December 20, 838 December 26, 838 December
Week 52 in 838 December 27, 838 January 2, 839 December / January

Calendars 838

January 838
MoTuWeThFrSaSu
Week 53123
Week 145678910
Week 211121314151617
Week 318192021222324
Week 425262728293031
February 838
MoTuWeThFrSaSu
Week 51234567
Week 6891011121314
Week 715161718192021
Week 822232425262728
March 838
MoTuWeThFrSaSu
Week 91234567
Week 10891011121314
Week 1115161718192021
Week 1222232425262728
Week 13293031
April 838
MoTuWeThFrSaSu
Week 131234
Week 14567891011
Week 1512131415161718
Week 1619202122232425
Week 172627282930
May 838
MoTuWeThFrSaSu
Week 1712
Week 183456789
Week 1910111213141516
Week 2017181920212223
Week 2124252627282930
Week 2231
June 838
MoTuWeThFrSaSu
Week 22123456
Week 2378910111213
Week 2414151617181920
Week 2521222324252627
Week 26282930
July 838
MoTuWeThFrSaSu
Week 261234
Week 27567891011
Week 2812131415161718
Week 2919202122232425
Week 30262728293031
August 838
MoTuWeThFrSaSu
Week 301
Week 312345678
Week 329101112131415
Week 3316171819202122
Week 3423242526272829
Week 353031
September 838
MoTuWeThFrSaSu
Week 3512345
Week 366789101112
Week 3713141516171819
Week 3820212223242526
Week 3927282930
October 838
MoTuWeThFrSaSu
Week 39123
Week 4045678910
Week 4111121314151617
Week 4218192021222324
Week 4325262728293031
November 838
MoTuWeThFrSaSu
Week 441234567
Week 45891011121314
Week 4615161718192021
Week 4722232425262728
Week 482930
December 838
MoTuWeThFrSaSu
Week 112345
Week 496789101112
Week 5013141516171819
Week 5120212223242526
Week 522728293031

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 838 starts on January 4, 838 and ends on January 10, 838 (ISO 8601, Monday to Sunday). 838 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 838 have?

838 has 52 ISO weeks.

When does week 1 of 838 start?

Week 1 of 838 starts on January 4, 838 and ends on January 10, 838 (ISO 8601, Monday to Sunday).

When does the last week of 838 end?

Week 52 of 838 starts on December 27, 838 and ends on January 2, 839 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 843, 848, 854, 860, 865.

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.