Week numbers 103

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

103 at a glance

Weeks in 10352
Week 1January 1, 103 – January 7, 103
Week 52December 24, 103 – December 30, 103
Days in 103365
Leap yearNo

All Weeks in 103

Week From To Month
Week 1 in 103 January 1, 103 January 7, 103 January
Week 2 in 103 January 8, 103 January 14, 103 January
Week 3 in 103 January 15, 103 January 21, 103 January
Week 4 in 103 January 22, 103 January 28, 103 January
Week 5 in 103 January 29, 103 February 4, 103 January / February
Week 6 in 103 February 5, 103 February 11, 103 February
Week 7 in 103 February 12, 103 February 18, 103 February
Week 8 in 103 February 19, 103 February 25, 103 February
Week 9 in 103 February 26, 103 March 4, 103 February / March
Week 10 in 103 March 5, 103 March 11, 103 March
Week 11 in 103 March 12, 103 March 18, 103 March
Week 12 in 103 March 19, 103 March 25, 103 March
Week 13 in 103 March 26, 103 April 1, 103 March / April
Week 14 in 103 April 2, 103 April 8, 103 April
Week 15 in 103 April 9, 103 April 15, 103 April
Week 16 in 103 April 16, 103 April 22, 103 April
Week 17 in 103 April 23, 103 April 29, 103 April
Week 18 in 103 April 30, 103 May 6, 103 April / May
Week 19 in 103 May 7, 103 May 13, 103 May
Week 20 in 103 May 14, 103 May 20, 103 May
Week 21 in 103 May 21, 103 May 27, 103 May
Week 22 in 103 May 28, 103 June 3, 103 May / June
Week 23 in 103 June 4, 103 June 10, 103 June
Week 24 in 103 June 11, 103 June 17, 103 June
Week 25 in 103 June 18, 103 June 24, 103 June
Week 26 in 103 June 25, 103 July 1, 103 June / July
Week 27 in 103 July 2, 103 July 8, 103 July
Week 28 in 103 July 9, 103 July 15, 103 July
Week 29 in 103 July 16, 103 July 22, 103 July
Week 30 in 103 July 23, 103 July 29, 103 July
Week 31 in 103 July 30, 103 August 5, 103 July / August
Week 32 in 103 August 6, 103 August 12, 103 August
Week 33 in 103 August 13, 103 August 19, 103 August
Week 34 in 103 August 20, 103 August 26, 103 August
Week 35 in 103 August 27, 103 September 2, 103 August / September
Week 36 in 103 September 3, 103 September 9, 103 September
Week 37 in 103 September 10, 103 September 16, 103 September
Week 38 in 103 September 17, 103 September 23, 103 September
Week 39 in 103 September 24, 103 September 30, 103 September
Week 40 in 103 October 1, 103 October 7, 103 October
Week 41 in 103 October 8, 103 October 14, 103 October
Week 42 in 103 October 15, 103 October 21, 103 October
Week 43 in 103 October 22, 103 October 28, 103 October
Week 44 in 103 October 29, 103 November 4, 103 October / November
Week 45 in 103 November 5, 103 November 11, 103 November
Week 46 in 103 November 12, 103 November 18, 103 November
Week 47 in 103 November 19, 103 November 25, 103 November
Week 48 in 103 November 26, 103 December 2, 103 November / December
Week 49 in 103 December 3, 103 December 9, 103 December
Week 50 in 103 December 10, 103 December 16, 103 December
Week 51 in 103 December 17, 103 December 23, 103 December
Week 52 in 103 December 24, 103 December 30, 103 December

Calendars 103

January 103
MoTuWeThFrSaSu
Week 11234567
Week 2891011121314
Week 315161718192021
Week 422232425262728
Week 5293031
February 103
MoTuWeThFrSaSu
Week 51234
Week 6567891011
Week 712131415161718
Week 819202122232425
Week 9262728
March 103
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 103
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 103
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 103
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 103
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 103
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 103
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 103
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 103
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 103
MoTuWeThFrSaSu
Week 212
Week 493456789
Week 5010111213141516
Week 5117181920212223
Week 5224252627282930
Week 131

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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 103 starts on January 1, 103 and ends on January 7, 103 (ISO 8601, Monday to Sunday). 103 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 103 have?

103 has 52 ISO weeks.

When does week 1 of 103 start?

Week 1 of 103 starts on January 1, 103 and ends on January 7, 103 (ISO 8601, Monday to Sunday).

When does the last week of 103 end?

Week 52 of 103 starts on December 24, 103 and ends on December 30, 103 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 105, 111, 116, 122, 128.

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.