Week numbers 981

981 has 52 ISO weeks. Week 1: Jan 1 – 7 · Week 52: Dec 24 – 30

981 at a glance

Weeks in 98152
Week 1January 1, 981 – January 7, 981
Week 52December 24, 981 – December 30, 981
Days in 981365
Leap yearNo

All Weeks in 981

Week From To Month
Week 1 in 981 January 1, 981 January 7, 981 January
Week 2 in 981 January 8, 981 January 14, 981 January
Week 3 in 981 January 15, 981 January 21, 981 January
Week 4 in 981 January 22, 981 January 28, 981 January
Week 5 in 981 January 29, 981 February 4, 981 January / February
Week 6 in 981 February 5, 981 February 11, 981 February
Week 7 in 981 February 12, 981 February 18, 981 February
Week 8 in 981 February 19, 981 February 25, 981 February
Week 9 in 981 February 26, 981 March 4, 981 February / March
Week 10 in 981 March 5, 981 March 11, 981 March
Week 11 in 981 March 12, 981 March 18, 981 March
Week 12 in 981 March 19, 981 March 25, 981 March
Week 13 in 981 March 26, 981 April 1, 981 March / April
Week 14 in 981 April 2, 981 April 8, 981 April
Week 15 in 981 April 9, 981 April 15, 981 April
Week 16 in 981 April 16, 981 April 22, 981 April
Week 17 in 981 April 23, 981 April 29, 981 April
Week 18 in 981 April 30, 981 May 6, 981 April / May
Week 19 in 981 May 7, 981 May 13, 981 May
Week 20 in 981 May 14, 981 May 20, 981 May
Week 21 in 981 May 21, 981 May 27, 981 May
Week 22 in 981 May 28, 981 June 3, 981 May / June
Week 23 in 981 June 4, 981 June 10, 981 June
Week 24 in 981 June 11, 981 June 17, 981 June
Week 25 in 981 June 18, 981 June 24, 981 June
Week 26 in 981 June 25, 981 July 1, 981 June / July
Week 27 in 981 July 2, 981 July 8, 981 July
Week 28 in 981 July 9, 981 July 15, 981 July
Week 29 in 981 July 16, 981 July 22, 981 July
Week 30 in 981 July 23, 981 July 29, 981 July
Week 31 in 981 July 30, 981 August 5, 981 July / August
Week 32 in 981 August 6, 981 August 12, 981 August
Week 33 in 981 August 13, 981 August 19, 981 August
Week 34 in 981 August 20, 981 August 26, 981 August
Week 35 in 981 August 27, 981 September 2, 981 August / September
Week 36 in 981 September 3, 981 September 9, 981 September
Week 37 in 981 September 10, 981 September 16, 981 September
Week 38 in 981 September 17, 981 September 23, 981 September
Week 39 in 981 September 24, 981 September 30, 981 September
Week 40 in 981 October 1, 981 October 7, 981 October
Week 41 in 981 October 8, 981 October 14, 981 October
Week 42 in 981 October 15, 981 October 21, 981 October
Week 43 in 981 October 22, 981 October 28, 981 October
Week 44 in 981 October 29, 981 November 4, 981 October / November
Week 45 in 981 November 5, 981 November 11, 981 November
Week 46 in 981 November 12, 981 November 18, 981 November
Week 47 in 981 November 19, 981 November 25, 981 November
Week 48 in 981 November 26, 981 December 2, 981 November / December
Week 49 in 981 December 3, 981 December 9, 981 December
Week 50 in 981 December 10, 981 December 16, 981 December
Week 51 in 981 December 17, 981 December 23, 981 December
Week 52 in 981 December 24, 981 December 30, 981 December

Calendars 981

January 981
MoTuWeThFrSaSu
Week 11234567
Week 2891011121314
Week 315161718192021
Week 422232425262728
Week 5293031
February 981
MoTuWeThFrSaSu
Week 51234
Week 6567891011
Week 712131415161718
Week 819202122232425
Week 9262728
March 981
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 981
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 981
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 981
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 981
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 981
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 981
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 981
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 981
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 981
MoTuWeThFrSaSu
Week 212
Week 493456789
Week 5010111213141516
Week 5117181920212223
Week 5224252627282930
Week 131

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 981 starts on January 1, 981 and ends on January 7, 981 (ISO 8601, Monday to Sunday). 981 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 981 have?

981 has 52 ISO weeks.

When does week 1 of 981 start?

Week 1 of 981 starts on January 1, 981 and ends on January 7, 981 (ISO 8601, Monday to Sunday).

When does the last week of 981 end?

Week 52 of 981 starts on December 24, 981 and ends on December 30, 981 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 984, 989, 995, 1001, 1007.

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.