Week numbers 1438

1438 has 52 ISO weeks. Week 1: Jan 1 – 7 · Week 52: Dec 24 – 30

1438 at a glance

Weeks in 143852
Week 1January 1, 1438 – January 7, 1438
Week 52December 24, 1438 – December 30, 1438
Days in 1438365
Leap yearNo

All Weeks in 1438

Week From To Month
Week 1 in 1438 January 1, 1438 January 7, 1438 January
Week 2 in 1438 January 8, 1438 January 14, 1438 January
Week 3 in 1438 January 15, 1438 January 21, 1438 January
Week 4 in 1438 January 22, 1438 January 28, 1438 January
Week 5 in 1438 January 29, 1438 February 4, 1438 January / February
Week 6 in 1438 February 5, 1438 February 11, 1438 February
Week 7 in 1438 February 12, 1438 February 18, 1438 February
Week 8 in 1438 February 19, 1438 February 25, 1438 February
Week 9 in 1438 February 26, 1438 March 4, 1438 February / March
Week 10 in 1438 March 5, 1438 March 11, 1438 March
Week 11 in 1438 March 12, 1438 March 18, 1438 March
Week 12 in 1438 March 19, 1438 March 25, 1438 March
Week 13 in 1438 March 26, 1438 April 1, 1438 March / April
Week 14 in 1438 April 2, 1438 April 8, 1438 April
Week 15 in 1438 April 9, 1438 April 15, 1438 April
Week 16 in 1438 April 16, 1438 April 22, 1438 April
Week 17 in 1438 April 23, 1438 April 29, 1438 April
Week 18 in 1438 April 30, 1438 May 6, 1438 April / May
Week 19 in 1438 May 7, 1438 May 13, 1438 May
Week 20 in 1438 May 14, 1438 May 20, 1438 May
Week 21 in 1438 May 21, 1438 May 27, 1438 May
Week 22 in 1438 May 28, 1438 June 3, 1438 May / June
Week 23 in 1438 June 4, 1438 June 10, 1438 June
Week 24 in 1438 June 11, 1438 June 17, 1438 June
Week 25 in 1438 June 18, 1438 June 24, 1438 June
Week 26 in 1438 June 25, 1438 July 1, 1438 June / July
Week 27 in 1438 July 2, 1438 July 8, 1438 July
Week 28 in 1438 July 9, 1438 July 15, 1438 July
Week 29 in 1438 July 16, 1438 July 22, 1438 July
Week 30 in 1438 July 23, 1438 July 29, 1438 July
Week 31 in 1438 July 30, 1438 August 5, 1438 July / August
Week 32 in 1438 August 6, 1438 August 12, 1438 August
Week 33 in 1438 August 13, 1438 August 19, 1438 August
Week 34 in 1438 August 20, 1438 August 26, 1438 August
Week 35 in 1438 August 27, 1438 September 2, 1438 August / September
Week 36 in 1438 September 3, 1438 September 9, 1438 September
Week 37 in 1438 September 10, 1438 September 16, 1438 September
Week 38 in 1438 September 17, 1438 September 23, 1438 September
Week 39 in 1438 September 24, 1438 September 30, 1438 September
Week 40 in 1438 October 1, 1438 October 7, 1438 October
Week 41 in 1438 October 8, 1438 October 14, 1438 October
Week 42 in 1438 October 15, 1438 October 21, 1438 October
Week 43 in 1438 October 22, 1438 October 28, 1438 October
Week 44 in 1438 October 29, 1438 November 4, 1438 October / November
Week 45 in 1438 November 5, 1438 November 11, 1438 November
Week 46 in 1438 November 12, 1438 November 18, 1438 November
Week 47 in 1438 November 19, 1438 November 25, 1438 November
Week 48 in 1438 November 26, 1438 December 2, 1438 November / December
Week 49 in 1438 December 3, 1438 December 9, 1438 December
Week 50 in 1438 December 10, 1438 December 16, 1438 December
Week 51 in 1438 December 17, 1438 December 23, 1438 December
Week 52 in 1438 December 24, 1438 December 30, 1438 December

Calendars 1438

January 1438
MoTuWeThFrSaSu
Week 11234567
Week 2891011121314
Week 315161718192021
Week 422232425262728
Week 5293031
February 1438
MoTuWeThFrSaSu
Week 51234
Week 6567891011
Week 712131415161718
Week 819202122232425
Week 9262728
March 1438
MoTuWeThFrSaSu
Week 91234
Week 10567891011
Week 1112131415161718
Week 1219202122232425
Week 13262728293031
April 1438
MoTuWeThFrSaSu
Week 131
Week 142345678
Week 159101112131415
Week 1616171819202122
Week 1723242526272829
Week 1830
May 1438
MoTuWeThFrSaSu
Week 18123456
Week 1978910111213
Week 2014151617181920
Week 2121222324252627
Week 2228293031
June 1438
MoTuWeThFrSaSu
Week 22123
Week 2345678910
Week 2411121314151617
Week 2518192021222324
Week 26252627282930
July 1438
MoTuWeThFrSaSu
Week 261
Week 272345678
Week 289101112131415
Week 2916171819202122
Week 3023242526272829
Week 313031
August 1438
MoTuWeThFrSaSu
Week 3112345
Week 326789101112
Week 3313141516171819
Week 3420212223242526
Week 352728293031
September 1438
MoTuWeThFrSaSu
Week 3512
Week 363456789
Week 3710111213141516
Week 3817181920212223
Week 3924252627282930
October 1438
MoTuWeThFrSaSu
Week 401234567
Week 41891011121314
Week 4215161718192021
Week 4322232425262728
Week 44293031
November 1438
MoTuWeThFrSaSu
Week 441234
Week 45567891011
Week 4612131415161718
Week 4719202122232425
Week 482627282930
December 1438
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 1438 starts on January 1, 1438 and ends on January 7, 1438 (ISO 8601, Monday to Sunday). 1438 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 1438 have?

1438 has 52 ISO weeks.

When does week 1 of 1438 start?

Week 1 of 1438 starts on January 1, 1438 and ends on January 7, 1438 (ISO 8601, Monday to Sunday).

When does the last week of 1438 end?

Week 52 of 1438 starts on December 24, 1438 and ends on December 30, 1438 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 1440, 1446, 1452, 1457, 1463.

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.