Week numbers 344

344 has 52 ISO weeks. Week 1: Jan 3 – 9 · Week 52: Dec 25 – 31

344 at a glance

Weeks in 34452
Week 1January 3, 344 – January 9, 344
Week 52December 25, 344 – December 31, 344
Days in 344366
Leap yearYes

All Weeks in 344

Week From To Month
Week 1 in 344 January 3, 344 January 9, 344 January
Week 2 in 344 January 10, 344 January 16, 344 January
Week 3 in 344 January 17, 344 January 23, 344 January
Week 4 in 344 January 24, 344 January 30, 344 January
Week 5 in 344 January 31, 344 February 6, 344 January / February
Week 6 in 344 February 7, 344 February 13, 344 February
Week 7 in 344 February 14, 344 February 20, 344 February
Week 8 in 344 February 21, 344 February 27, 344 February
Week 9 in 344 February 28, 344 March 5, 344 February / March
Week 10 in 344 March 6, 344 March 12, 344 March
Week 11 in 344 March 13, 344 March 19, 344 March
Week 12 in 344 March 20, 344 March 26, 344 March
Week 13 in 344 March 27, 344 April 2, 344 March / April
Week 14 in 344 April 3, 344 April 9, 344 April
Week 15 in 344 April 10, 344 April 16, 344 April
Week 16 in 344 April 17, 344 April 23, 344 April
Week 17 in 344 April 24, 344 April 30, 344 April
Week 18 in 344 May 1, 344 May 7, 344 May
Week 19 in 344 May 8, 344 May 14, 344 May
Week 20 in 344 May 15, 344 May 21, 344 May
Week 21 in 344 May 22, 344 May 28, 344 May
Week 22 in 344 May 29, 344 June 4, 344 May / June
Week 23 in 344 June 5, 344 June 11, 344 June
Week 24 in 344 June 12, 344 June 18, 344 June
Week 25 in 344 June 19, 344 June 25, 344 June
Week 26 in 344 June 26, 344 July 2, 344 June / July
Week 27 in 344 July 3, 344 July 9, 344 July
Week 28 in 344 July 10, 344 July 16, 344 July
Week 29 in 344 July 17, 344 July 23, 344 July
Week 30 in 344 July 24, 344 July 30, 344 July
Week 31 in 344 July 31, 344 August 6, 344 July / August
Week 32 in 344 August 7, 344 August 13, 344 August
Week 33 in 344 August 14, 344 August 20, 344 August
Week 34 in 344 August 21, 344 August 27, 344 August
Week 35 in 344 August 28, 344 September 3, 344 August / September
Week 36 in 344 September 4, 344 September 10, 344 September
Week 37 in 344 September 11, 344 September 17, 344 September
Week 38 in 344 September 18, 344 September 24, 344 September
Week 39 in 344 September 25, 344 October 1, 344 September / October
Week 40 in 344 October 2, 344 October 8, 344 October
Week 41 in 344 October 9, 344 October 15, 344 October
Week 42 in 344 October 16, 344 October 22, 344 October
Week 43 in 344 October 23, 344 October 29, 344 October
Week 44 in 344 October 30, 344 November 5, 344 October / November
Week 45 in 344 November 6, 344 November 12, 344 November
Week 46 in 344 November 13, 344 November 19, 344 November
Week 47 in 344 November 20, 344 November 26, 344 November
Week 48 in 344 November 27, 344 December 3, 344 November / December
Week 49 in 344 December 4, 344 December 10, 344 December
Week 50 in 344 December 11, 344 December 17, 344 December
Week 51 in 344 December 18, 344 December 24, 344 December
Week 52 in 344 December 25, 344 December 31, 344 December

Calendars 344

January 344
MoTuWeThFrSaSu
Week 5212
Week 13456789
Week 210111213141516
Week 317181920212223
Week 424252627282930
Week 531
February 344
MoTuWeThFrSaSu
Week 5123456
Week 678910111213
Week 714151617181920
Week 821222324252627
Week 92829
March 344
MoTuWeThFrSaSu
Week 912345
Week 106789101112
Week 1113141516171819
Week 1220212223242526
Week 132728293031
April 344
MoTuWeThFrSaSu
Week 1312
Week 143456789
Week 1510111213141516
Week 1617181920212223
Week 1724252627282930
May 344
MoTuWeThFrSaSu
Week 181234567
Week 19891011121314
Week 2015161718192021
Week 2122232425262728
Week 22293031
June 344
MoTuWeThFrSaSu
Week 221234
Week 23567891011
Week 2412131415161718
Week 2519202122232425
Week 262627282930
July 344
MoTuWeThFrSaSu
Week 2612
Week 273456789
Week 2810111213141516
Week 2917181920212223
Week 3024252627282930
Week 3131
August 344
MoTuWeThFrSaSu
Week 31123456
Week 3278910111213
Week 3314151617181920
Week 3421222324252627
Week 3528293031
September 344
MoTuWeThFrSaSu
Week 35123
Week 3645678910
Week 3711121314151617
Week 3818192021222324
Week 39252627282930
October 344
MoTuWeThFrSaSu
Week 391
Week 402345678
Week 419101112131415
Week 4216171819202122
Week 4323242526272829
Week 443031
November 344
MoTuWeThFrSaSu
Week 4412345
Week 456789101112
Week 4613141516171819
Week 4720212223242526
Week 4827282930
December 344
MoTuWeThFrSaSu
Week 1123
Week 4945678910
Week 5011121314151617
Week 5118192021222324
Week 5225262728293031

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 344 starts on January 3, 344 and ends on January 9, 344 (ISO 8601, Monday to Sunday). 344 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 344 have?

344 has 52 ISO weeks.

When does week 1 of 344 start?

Week 1 of 344 starts on January 3, 344 and ends on January 9, 344 (ISO 8601, Monday to Sunday).

When does the last week of 344 end?

Week 52 of 344 starts on December 25, 344 and ends on December 31, 344 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 348, 353, 359, 364, 370.

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.