Week numbers 318

318 has 52 ISO weeks. Week 1: Dec 31, 317 – Jan 6, 318 · Week 52: Dec 23 – 29

318 at a glance

Weeks in 31852
Week 1December 31, 317 – January 6, 318
Week 52December 23, 318 – December 29, 318
Days in 318365
Leap yearNo

All Weeks in 318

Week From To Month
Week 1 in 318 December 31, 317 January 6, 318 December / January
Week 2 in 318 January 7, 318 January 13, 318 January
Week 3 in 318 January 14, 318 January 20, 318 January
Week 4 in 318 January 21, 318 January 27, 318 January
Week 5 in 318 January 28, 318 February 3, 318 January / February
Week 6 in 318 February 4, 318 February 10, 318 February
Week 7 in 318 February 11, 318 February 17, 318 February
Week 8 in 318 February 18, 318 February 24, 318 February
Week 9 in 318 February 25, 318 March 3, 318 February / March
Week 10 in 318 March 4, 318 March 10, 318 March
Week 11 in 318 March 11, 318 March 17, 318 March
Week 12 in 318 March 18, 318 March 24, 318 March
Week 13 in 318 March 25, 318 March 31, 318 March
Week 14 in 318 April 1, 318 April 7, 318 April
Week 15 in 318 April 8, 318 April 14, 318 April
Week 16 in 318 April 15, 318 April 21, 318 April
Week 17 in 318 April 22, 318 April 28, 318 April
Week 18 in 318 April 29, 318 May 5, 318 April / May
Week 19 in 318 May 6, 318 May 12, 318 May
Week 20 in 318 May 13, 318 May 19, 318 May
Week 21 in 318 May 20, 318 May 26, 318 May
Week 22 in 318 May 27, 318 June 2, 318 May / June
Week 23 in 318 June 3, 318 June 9, 318 June
Week 24 in 318 June 10, 318 June 16, 318 June
Week 25 in 318 June 17, 318 June 23, 318 June
Week 26 in 318 June 24, 318 June 30, 318 June
Week 27 in 318 July 1, 318 July 7, 318 July
Week 28 in 318 July 8, 318 July 14, 318 July
Week 29 in 318 July 15, 318 July 21, 318 July
Week 30 in 318 July 22, 318 July 28, 318 July
Week 31 in 318 July 29, 318 August 4, 318 July / August
Week 32 in 318 August 5, 318 August 11, 318 August
Week 33 in 318 August 12, 318 August 18, 318 August
Week 34 in 318 August 19, 318 August 25, 318 August
Week 35 in 318 August 26, 318 September 1, 318 August / September
Week 36 in 318 September 2, 318 September 8, 318 September
Week 37 in 318 September 9, 318 September 15, 318 September
Week 38 in 318 September 16, 318 September 22, 318 September
Week 39 in 318 September 23, 318 September 29, 318 September
Week 40 in 318 September 30, 318 October 6, 318 September / October
Week 41 in 318 October 7, 318 October 13, 318 October
Week 42 in 318 October 14, 318 October 20, 318 October
Week 43 in 318 October 21, 318 October 27, 318 October
Week 44 in 318 October 28, 318 November 3, 318 October / November
Week 45 in 318 November 4, 318 November 10, 318 November
Week 46 in 318 November 11, 318 November 17, 318 November
Week 47 in 318 November 18, 318 November 24, 318 November
Week 48 in 318 November 25, 318 December 1, 318 November / December
Week 49 in 318 December 2, 318 December 8, 318 December
Week 50 in 318 December 9, 318 December 15, 318 December
Week 51 in 318 December 16, 318 December 22, 318 December
Week 52 in 318 December 23, 318 December 29, 318 December

Calendars 318

January 318
MoTuWeThFrSaSu
Week 1123456
Week 278910111213
Week 314151617181920
Week 421222324252627
Week 528293031
February 318
MoTuWeThFrSaSu
Week 5123
Week 645678910
Week 711121314151617
Week 818192021222324
Week 925262728
March 318
MoTuWeThFrSaSu
Week 9123
Week 1045678910
Week 1111121314151617
Week 1218192021222324
Week 1325262728293031
April 318
MoTuWeThFrSaSu
Week 141234567
Week 15891011121314
Week 1615161718192021
Week 1722232425262728
Week 182930
May 318
MoTuWeThFrSaSu
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
June 318
MoTuWeThFrSaSu
Week 2212
Week 233456789
Week 2410111213141516
Week 2517181920212223
Week 2624252627282930
July 318
MoTuWeThFrSaSu
Week 271234567
Week 28891011121314
Week 2915161718192021
Week 3022232425262728
Week 31293031
August 318
MoTuWeThFrSaSu
Week 311234
Week 32567891011
Week 3312131415161718
Week 3419202122232425
Week 35262728293031
September 318
MoTuWeThFrSaSu
Week 351
Week 362345678
Week 379101112131415
Week 3816171819202122
Week 3923242526272829
Week 4030
October 318
MoTuWeThFrSaSu
Week 40123456
Week 4178910111213
Week 4214151617181920
Week 4321222324252627
Week 4428293031
November 318
MoTuWeThFrSaSu
Week 44123
Week 4545678910
Week 4611121314151617
Week 4718192021222324
Week 48252627282930
December 318
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 318 starts on December 31, 317 and ends on January 6, 318 (ISO 8601, Monday to Sunday). 318 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 318 have?

318 has 52 ISO weeks.

When does week 1 of 318 start?

Week 1 of 318 starts on December 31, 317 and ends on January 6, 318 (ISO 8601, Monday to Sunday).

When does the last week of 318 end?

Week 52 of 318 starts on December 23, 318 and ends on December 29, 318 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 320, 325, 331, 336, 342.

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.