Week numbers 939

939 has 53 ISO weeks, because 1 January 939 falls on a Thursday. Week 1: Dec 29, 938 – Jan 4, 939 · Week 53: Dec 28, 939 – Jan 3, 940

939 at a glance

Weeks in 93953
Week 1December 29, 938 – January 4, 939
Week 53December 28, 939 – January 3, 940
Days in 939365
Leap yearNo

All Weeks in 939

Week From To Month
Week 1 in 939 December 29, 938 January 4, 939 December / January
Week 2 in 939 January 5, 939 January 11, 939 January
Week 3 in 939 January 12, 939 January 18, 939 January
Week 4 in 939 January 19, 939 January 25, 939 January
Week 5 in 939 January 26, 939 February 1, 939 January / February
Week 6 in 939 February 2, 939 February 8, 939 February
Week 7 in 939 February 9, 939 February 15, 939 February
Week 8 in 939 February 16, 939 February 22, 939 February
Week 9 in 939 February 23, 939 March 1, 939 February / March
Week 10 in 939 March 2, 939 March 8, 939 March
Week 11 in 939 March 9, 939 March 15, 939 March
Week 12 in 939 March 16, 939 March 22, 939 March
Week 13 in 939 March 23, 939 March 29, 939 March
Week 14 in 939 March 30, 939 April 5, 939 March / April
Week 15 in 939 April 6, 939 April 12, 939 April
Week 16 in 939 April 13, 939 April 19, 939 April
Week 17 in 939 April 20, 939 April 26, 939 April
Week 18 in 939 April 27, 939 May 3, 939 April / May
Week 19 in 939 May 4, 939 May 10, 939 May
Week 20 in 939 May 11, 939 May 17, 939 May
Week 21 in 939 May 18, 939 May 24, 939 May
Week 22 in 939 May 25, 939 May 31, 939 May
Week 23 in 939 June 1, 939 June 7, 939 June
Week 24 in 939 June 8, 939 June 14, 939 June
Week 25 in 939 June 15, 939 June 21, 939 June
Week 26 in 939 June 22, 939 June 28, 939 June
Week 27 in 939 June 29, 939 July 5, 939 June / July
Week 28 in 939 July 6, 939 July 12, 939 July
Week 29 in 939 July 13, 939 July 19, 939 July
Week 30 in 939 July 20, 939 July 26, 939 July
Week 31 in 939 July 27, 939 August 2, 939 July / August
Week 32 in 939 August 3, 939 August 9, 939 August
Week 33 in 939 August 10, 939 August 16, 939 August
Week 34 in 939 August 17, 939 August 23, 939 August
Week 35 in 939 August 24, 939 August 30, 939 August
Week 36 in 939 August 31, 939 September 6, 939 August / September
Week 37 in 939 September 7, 939 September 13, 939 September
Week 38 in 939 September 14, 939 September 20, 939 September
Week 39 in 939 September 21, 939 September 27, 939 September
Week 40 in 939 September 28, 939 October 4, 939 September / October
Week 41 in 939 October 5, 939 October 11, 939 October
Week 42 in 939 October 12, 939 October 18, 939 October
Week 43 in 939 October 19, 939 October 25, 939 October
Week 44 in 939 October 26, 939 November 1, 939 October / November
Week 45 in 939 November 2, 939 November 8, 939 November
Week 46 in 939 November 9, 939 November 15, 939 November
Week 47 in 939 November 16, 939 November 22, 939 November
Week 48 in 939 November 23, 939 November 29, 939 November
Week 49 in 939 November 30, 939 December 6, 939 November / December
Week 50 in 939 December 7, 939 December 13, 939 December
Week 51 in 939 December 14, 939 December 20, 939 December
Week 52 in 939 December 21, 939 December 27, 939 December
Week 53 in 939 December 28, 939 January 3, 940 December / January

Calendars 939

January 939
MoTuWeThFrSaSu
Week 11234
Week 2567891011
Week 312131415161718
Week 419202122232425
Week 5262728293031
February 939
MoTuWeThFrSaSu
Week 51
Week 62345678
Week 79101112131415
Week 816171819202122
Week 9232425262728
March 939
MoTuWeThFrSaSu
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
April 939
MoTuWeThFrSaSu
Week 1412345
Week 156789101112
Week 1613141516171819
Week 1720212223242526
Week 1827282930
May 939
MoTuWeThFrSaSu
Week 18123
Week 1945678910
Week 2011121314151617
Week 2118192021222324
Week 2225262728293031
June 939
MoTuWeThFrSaSu
Week 231234567
Week 24891011121314
Week 2515161718192021
Week 2622232425262728
Week 272930
July 939
MoTuWeThFrSaSu
Week 2712345
Week 286789101112
Week 2913141516171819
Week 3020212223242526
Week 312728293031
August 939
MoTuWeThFrSaSu
Week 3112
Week 323456789
Week 3310111213141516
Week 3417181920212223
Week 3524252627282930
Week 3631
September 939
MoTuWeThFrSaSu
Week 36123456
Week 3778910111213
Week 3814151617181920
Week 3921222324252627
Week 40282930
October 939
MoTuWeThFrSaSu
Week 401234
Week 41567891011
Week 4212131415161718
Week 4319202122232425
Week 44262728293031
November 939
MoTuWeThFrSaSu
Week 441
Week 452345678
Week 469101112131415
Week 4716171819202122
Week 4823242526272829
Week 4930
December 939
MoTuWeThFrSaSu
Week 2123456
Week 5078910111213
Week 5114151617181920
Week 5221222324252627
Week 5328293031

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 939 starts on December 29, 938 and ends on January 4, 939 (ISO 8601, Monday to Sunday). 939 has 53 ISO weeks, because 1 January 939 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 939 have?

939 has 53 ISO weeks, because 1 January 939 falls on a Thursday.

When does week 1 of 939 start?

Week 1 of 939 starts on December 29, 938 and ends on January 4, 939 (ISO 8601, Monday to Sunday).

When does the last week of 939 end?

Week 53 of 939 starts on December 28, 939 and ends on January 3, 940 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 939, 944, 950, 956, 961.

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.