Week numbers 542

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

542 at a glance

Weeks in 54252
Week 1January 1, 542 – January 7, 542
Week 52December 24, 542 – December 30, 542
Days in 542365
Leap yearNo

All Weeks in 542

Week From To Month
Week 1 in 542 January 1, 542 January 7, 542 January
Week 2 in 542 January 8, 542 January 14, 542 January
Week 3 in 542 January 15, 542 January 21, 542 January
Week 4 in 542 January 22, 542 January 28, 542 January
Week 5 in 542 January 29, 542 February 4, 542 January / February
Week 6 in 542 February 5, 542 February 11, 542 February
Week 7 in 542 February 12, 542 February 18, 542 February
Week 8 in 542 February 19, 542 February 25, 542 February
Week 9 in 542 February 26, 542 March 4, 542 February / March
Week 10 in 542 March 5, 542 March 11, 542 March
Week 11 in 542 March 12, 542 March 18, 542 March
Week 12 in 542 March 19, 542 March 25, 542 March
Week 13 in 542 March 26, 542 April 1, 542 March / April
Week 14 in 542 April 2, 542 April 8, 542 April
Week 15 in 542 April 9, 542 April 15, 542 April
Week 16 in 542 April 16, 542 April 22, 542 April
Week 17 in 542 April 23, 542 April 29, 542 April
Week 18 in 542 April 30, 542 May 6, 542 April / May
Week 19 in 542 May 7, 542 May 13, 542 May
Week 20 in 542 May 14, 542 May 20, 542 May
Week 21 in 542 May 21, 542 May 27, 542 May
Week 22 in 542 May 28, 542 June 3, 542 May / June
Week 23 in 542 June 4, 542 June 10, 542 June
Week 24 in 542 June 11, 542 June 17, 542 June
Week 25 in 542 June 18, 542 June 24, 542 June
Week 26 in 542 June 25, 542 July 1, 542 June / July
Week 27 in 542 July 2, 542 July 8, 542 July
Week 28 in 542 July 9, 542 July 15, 542 July
Week 29 in 542 July 16, 542 July 22, 542 July
Week 30 in 542 July 23, 542 July 29, 542 July
Week 31 in 542 July 30, 542 August 5, 542 July / August
Week 32 in 542 August 6, 542 August 12, 542 August
Week 33 in 542 August 13, 542 August 19, 542 August
Week 34 in 542 August 20, 542 August 26, 542 August
Week 35 in 542 August 27, 542 September 2, 542 August / September
Week 36 in 542 September 3, 542 September 9, 542 September
Week 37 in 542 September 10, 542 September 16, 542 September
Week 38 in 542 September 17, 542 September 23, 542 September
Week 39 in 542 September 24, 542 September 30, 542 September
Week 40 in 542 October 1, 542 October 7, 542 October
Week 41 in 542 October 8, 542 October 14, 542 October
Week 42 in 542 October 15, 542 October 21, 542 October
Week 43 in 542 October 22, 542 October 28, 542 October
Week 44 in 542 October 29, 542 November 4, 542 October / November
Week 45 in 542 November 5, 542 November 11, 542 November
Week 46 in 542 November 12, 542 November 18, 542 November
Week 47 in 542 November 19, 542 November 25, 542 November
Week 48 in 542 November 26, 542 December 2, 542 November / December
Week 49 in 542 December 3, 542 December 9, 542 December
Week 50 in 542 December 10, 542 December 16, 542 December
Week 51 in 542 December 17, 542 December 23, 542 December
Week 52 in 542 December 24, 542 December 30, 542 December

Calendars 542

January 542
MoTuWeThFrSaSu
Week 11234567
Week 2891011121314
Week 315161718192021
Week 422232425262728
Week 5293031
February 542
MoTuWeThFrSaSu
Week 51234
Week 6567891011
Week 712131415161718
Week 819202122232425
Week 9262728
March 542
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 542
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 542
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 542
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 542
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 542
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 542
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 542
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 542
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 542
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 542 starts on January 1, 542 and ends on January 7, 542 (ISO 8601, Monday to Sunday). 542 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 542 have?

542 has 52 ISO weeks.

When does week 1 of 542 start?

Week 1 of 542 starts on January 1, 542 and ends on January 7, 542 (ISO 8601, Monday to Sunday).

When does the last week of 542 end?

Week 52 of 542 starts on December 24, 542 and ends on December 30, 542 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 544, 550, 556, 561, 567.

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.