Week numbers 335

335 has 52 ISO weeks. Week 1: Dec 31, 334 – Jan 6, 335 · Week 52: Dec 23 – 29

335 at a glance

Weeks in 33552
Week 1December 31, 334 – January 6, 335
Week 52December 23, 335 – December 29, 335
Days in 335365
Leap yearNo

All Weeks in 335

Week From To Month
Week 1 in 335 December 31, 334 January 6, 335 December / January
Week 2 in 335 January 7, 335 January 13, 335 January
Week 3 in 335 January 14, 335 January 20, 335 January
Week 4 in 335 January 21, 335 January 27, 335 January
Week 5 in 335 January 28, 335 February 3, 335 January / February
Week 6 in 335 February 4, 335 February 10, 335 February
Week 7 in 335 February 11, 335 February 17, 335 February
Week 8 in 335 February 18, 335 February 24, 335 February
Week 9 in 335 February 25, 335 March 3, 335 February / March
Week 10 in 335 March 4, 335 March 10, 335 March
Week 11 in 335 March 11, 335 March 17, 335 March
Week 12 in 335 March 18, 335 March 24, 335 March
Week 13 in 335 March 25, 335 March 31, 335 March
Week 14 in 335 April 1, 335 April 7, 335 April
Week 15 in 335 April 8, 335 April 14, 335 April
Week 16 in 335 April 15, 335 April 21, 335 April
Week 17 in 335 April 22, 335 April 28, 335 April
Week 18 in 335 April 29, 335 May 5, 335 April / May
Week 19 in 335 May 6, 335 May 12, 335 May
Week 20 in 335 May 13, 335 May 19, 335 May
Week 21 in 335 May 20, 335 May 26, 335 May
Week 22 in 335 May 27, 335 June 2, 335 May / June
Week 23 in 335 June 3, 335 June 9, 335 June
Week 24 in 335 June 10, 335 June 16, 335 June
Week 25 in 335 June 17, 335 June 23, 335 June
Week 26 in 335 June 24, 335 June 30, 335 June
Week 27 in 335 July 1, 335 July 7, 335 July
Week 28 in 335 July 8, 335 July 14, 335 July
Week 29 in 335 July 15, 335 July 21, 335 July
Week 30 in 335 July 22, 335 July 28, 335 July
Week 31 in 335 July 29, 335 August 4, 335 July / August
Week 32 in 335 August 5, 335 August 11, 335 August
Week 33 in 335 August 12, 335 August 18, 335 August
Week 34 in 335 August 19, 335 August 25, 335 August
Week 35 in 335 August 26, 335 September 1, 335 August / September
Week 36 in 335 September 2, 335 September 8, 335 September
Week 37 in 335 September 9, 335 September 15, 335 September
Week 38 in 335 September 16, 335 September 22, 335 September
Week 39 in 335 September 23, 335 September 29, 335 September
Week 40 in 335 September 30, 335 October 6, 335 September / October
Week 41 in 335 October 7, 335 October 13, 335 October
Week 42 in 335 October 14, 335 October 20, 335 October
Week 43 in 335 October 21, 335 October 27, 335 October
Week 44 in 335 October 28, 335 November 3, 335 October / November
Week 45 in 335 November 4, 335 November 10, 335 November
Week 46 in 335 November 11, 335 November 17, 335 November
Week 47 in 335 November 18, 335 November 24, 335 November
Week 48 in 335 November 25, 335 December 1, 335 November / December
Week 49 in 335 December 2, 335 December 8, 335 December
Week 50 in 335 December 9, 335 December 15, 335 December
Week 51 in 335 December 16, 335 December 22, 335 December
Week 52 in 335 December 23, 335 December 29, 335 December

Calendars 335

January 335
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 335
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 925262728
March 335
MoTuWeThFrSaSu
Week 9123
Week 1045678910
Week 1111121314151617
Week 1218192021222324
Week 1325262728293031
April 335
MoTuWeThFrSaSu
Week 141234567
Week 15891011121314
Week 1615161718192021
Week 1722232425262728
Week 182930
May 335
MoTuWeThFrSaSu
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
June 335
MoTuWeThFrSaSu
Week 2212
Week 233456789
Week 2410111213141516
Week 2517181920212223
Week 2624252627282930
July 335
MoTuWeThFrSaSu
Week 271234567
Week 28891011121314
Week 2915161718192021
Week 3022232425262728
Week 31293031
August 335
MoTuWeThFrSaSu
Week 311234
Week 32567891011
Week 3312131415161718
Week 3419202122232425
Week 35262728293031
September 335
MoTuWeThFrSaSu
Week 351
Week 362345678
Week 379101112131415
Week 3816171819202122
Week 3923242526272829
Week 4030
October 335
MoTuWeThFrSaSu
Week 40123456
Week 4178910111213
Week 4214151617181920
Week 4321222324252627
Week 4428293031
November 335
MoTuWeThFrSaSu
Week 44123
Week 4545678910
Week 4611121314151617
Week 4718192021222324
Week 48252627282930
December 335
MoTuWeThFrSaSu
Week 21
Week 492345678
Week 509101112131415
Week 5116171819202122
Week 5223242526272829
Week 13031

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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 335 starts on December 31, 334 and ends on January 6, 335 (ISO 8601, Monday to Sunday). 335 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 335 have?

335 has 52 ISO weeks.

When does week 1 of 335 start?

Week 1 of 335 starts on December 31, 334 and ends on January 6, 335 (ISO 8601, Monday to Sunday).

When does the last week of 335 end?

Week 52 of 335 starts on December 23, 335 and ends on December 29, 335 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 336, 342, 348, 353, 359.

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.