Week numbers 225

225 has 52 ISO weeks. Week 1: Jan 3 – 9 · Week 52: Dec 26, 225 – Jan 1, 226

225 at a glance

Weeks in 22552
Week 1January 3, 225 – January 9, 225
Week 52December 26, 225 – January 1, 226
Days in 225365
Leap yearNo

All Weeks in 225

Week From To Month
Week 1 in 225 January 3, 225 January 9, 225 January
Week 2 in 225 January 10, 225 January 16, 225 January
Week 3 in 225 January 17, 225 January 23, 225 January
Week 4 in 225 January 24, 225 January 30, 225 January
Week 5 in 225 January 31, 225 February 6, 225 January / February
Week 6 in 225 February 7, 225 February 13, 225 February
Week 7 in 225 February 14, 225 February 20, 225 February
Week 8 in 225 February 21, 225 February 27, 225 February
Week 9 in 225 February 28, 225 March 6, 225 February / March
Week 10 in 225 March 7, 225 March 13, 225 March
Week 11 in 225 March 14, 225 March 20, 225 March
Week 12 in 225 March 21, 225 March 27, 225 March
Week 13 in 225 March 28, 225 April 3, 225 March / April
Week 14 in 225 April 4, 225 April 10, 225 April
Week 15 in 225 April 11, 225 April 17, 225 April
Week 16 in 225 April 18, 225 April 24, 225 April
Week 17 in 225 April 25, 225 May 1, 225 April / May
Week 18 in 225 May 2, 225 May 8, 225 May
Week 19 in 225 May 9, 225 May 15, 225 May
Week 20 in 225 May 16, 225 May 22, 225 May
Week 21 in 225 May 23, 225 May 29, 225 May
Week 22 in 225 May 30, 225 June 5, 225 May / June
Week 23 in 225 June 6, 225 June 12, 225 June
Week 24 in 225 June 13, 225 June 19, 225 June
Week 25 in 225 June 20, 225 June 26, 225 June
Week 26 in 225 June 27, 225 July 3, 225 June / July
Week 27 in 225 July 4, 225 July 10, 225 July
Week 28 in 225 July 11, 225 July 17, 225 July
Week 29 in 225 July 18, 225 July 24, 225 July
Week 30 in 225 July 25, 225 July 31, 225 July
Week 31 in 225 August 1, 225 August 7, 225 August
Week 32 in 225 August 8, 225 August 14, 225 August
Week 33 in 225 August 15, 225 August 21, 225 August
Week 34 in 225 August 22, 225 August 28, 225 August
Week 35 in 225 August 29, 225 September 4, 225 August / September
Week 36 in 225 September 5, 225 September 11, 225 September
Week 37 in 225 September 12, 225 September 18, 225 September
Week 38 in 225 September 19, 225 September 25, 225 September
Week 39 in 225 September 26, 225 October 2, 225 September / October
Week 40 in 225 October 3, 225 October 9, 225 October
Week 41 in 225 October 10, 225 October 16, 225 October
Week 42 in 225 October 17, 225 October 23, 225 October
Week 43 in 225 October 24, 225 October 30, 225 October
Week 44 in 225 October 31, 225 November 6, 225 October / November
Week 45 in 225 November 7, 225 November 13, 225 November
Week 46 in 225 November 14, 225 November 20, 225 November
Week 47 in 225 November 21, 225 November 27, 225 November
Week 48 in 225 November 28, 225 December 4, 225 November / December
Week 49 in 225 December 5, 225 December 11, 225 December
Week 50 in 225 December 12, 225 December 18, 225 December
Week 51 in 225 December 19, 225 December 25, 225 December
Week 52 in 225 December 26, 225 January 1, 226 December / January

Calendars 225

January 225
MoTuWeThFrSaSu
Week 5312
Week 13456789
Week 210111213141516
Week 317181920212223
Week 424252627282930
Week 531
February 225
MoTuWeThFrSaSu
Week 5123456
Week 678910111213
Week 714151617181920
Week 821222324252627
Week 928
March 225
MoTuWeThFrSaSu
Week 9123456
Week 1078910111213
Week 1114151617181920
Week 1221222324252627
Week 1328293031
April 225
MoTuWeThFrSaSu
Week 13123
Week 1445678910
Week 1511121314151617
Week 1618192021222324
Week 17252627282930
May 225
MoTuWeThFrSaSu
Week 171
Week 182345678
Week 199101112131415
Week 2016171819202122
Week 2123242526272829
Week 223031
June 225
MoTuWeThFrSaSu
Week 2212345
Week 236789101112
Week 2413141516171819
Week 2520212223242526
Week 2627282930
July 225
MoTuWeThFrSaSu
Week 26123
Week 2745678910
Week 2811121314151617
Week 2918192021222324
Week 3025262728293031
August 225
MoTuWeThFrSaSu
Week 311234567
Week 32891011121314
Week 3315161718192021
Week 3422232425262728
Week 35293031
September 225
MoTuWeThFrSaSu
Week 351234
Week 36567891011
Week 3712131415161718
Week 3819202122232425
Week 392627282930
October 225
MoTuWeThFrSaSu
Week 3912
Week 403456789
Week 4110111213141516
Week 4217181920212223
Week 4324252627282930
Week 4431
November 225
MoTuWeThFrSaSu
Week 44123456
Week 4578910111213
Week 4614151617181920
Week 4721222324252627
Week 48282930
December 225
MoTuWeThFrSaSu
Week 11234
Week 49567891011
Week 5012131415161718
Week 5119202122232425
Week 52262728293031

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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 225 starts on January 3, 225 and ends on January 9, 225 (ISO 8601, Monday to Sunday). 225 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 225 have?

225 has 52 ISO weeks.

When does week 1 of 225 start?

Week 1 of 225 starts on January 3, 225 and ends on January 9, 225 (ISO 8601, Monday to Sunday).

When does the last week of 225 end?

Week 52 of 225 starts on December 26, 225 and ends on January 1, 226 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 229, 235, 240, 246, 252.

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.