Week numbers 445

445 has 52 ISO weeks. Week 1: Jan 2 – 8 · Week 52: Dec 25 – 31

445 at a glance

Weeks in 44552
Week 1January 2, 445 – January 8, 445
Week 52December 25, 445 – December 31, 445
Days in 445365
Leap yearNo

All Weeks in 445

Week From To Month
Week 1 in 445 January 2, 445 January 8, 445 January
Week 2 in 445 January 9, 445 January 15, 445 January
Week 3 in 445 January 16, 445 January 22, 445 January
Week 4 in 445 January 23, 445 January 29, 445 January
Week 5 in 445 January 30, 445 February 5, 445 January / February
Week 6 in 445 February 6, 445 February 12, 445 February
Week 7 in 445 February 13, 445 February 19, 445 February
Week 8 in 445 February 20, 445 February 26, 445 February
Week 9 in 445 February 27, 445 March 5, 445 February / March
Week 10 in 445 March 6, 445 March 12, 445 March
Week 11 in 445 March 13, 445 March 19, 445 March
Week 12 in 445 March 20, 445 March 26, 445 March
Week 13 in 445 March 27, 445 April 2, 445 March / April
Week 14 in 445 April 3, 445 April 9, 445 April
Week 15 in 445 April 10, 445 April 16, 445 April
Week 16 in 445 April 17, 445 April 23, 445 April
Week 17 in 445 April 24, 445 April 30, 445 April
Week 18 in 445 May 1, 445 May 7, 445 May
Week 19 in 445 May 8, 445 May 14, 445 May
Week 20 in 445 May 15, 445 May 21, 445 May
Week 21 in 445 May 22, 445 May 28, 445 May
Week 22 in 445 May 29, 445 June 4, 445 May / June
Week 23 in 445 June 5, 445 June 11, 445 June
Week 24 in 445 June 12, 445 June 18, 445 June
Week 25 in 445 June 19, 445 June 25, 445 June
Week 26 in 445 June 26, 445 July 2, 445 June / July
Week 27 in 445 July 3, 445 July 9, 445 July
Week 28 in 445 July 10, 445 July 16, 445 July
Week 29 in 445 July 17, 445 July 23, 445 July
Week 30 in 445 July 24, 445 July 30, 445 July
Week 31 in 445 July 31, 445 August 6, 445 July / August
Week 32 in 445 August 7, 445 August 13, 445 August
Week 33 in 445 August 14, 445 August 20, 445 August
Week 34 in 445 August 21, 445 August 27, 445 August
Week 35 in 445 August 28, 445 September 3, 445 August / September
Week 36 in 445 September 4, 445 September 10, 445 September
Week 37 in 445 September 11, 445 September 17, 445 September
Week 38 in 445 September 18, 445 September 24, 445 September
Week 39 in 445 September 25, 445 October 1, 445 September / October
Week 40 in 445 October 2, 445 October 8, 445 October
Week 41 in 445 October 9, 445 October 15, 445 October
Week 42 in 445 October 16, 445 October 22, 445 October
Week 43 in 445 October 23, 445 October 29, 445 October
Week 44 in 445 October 30, 445 November 5, 445 October / November
Week 45 in 445 November 6, 445 November 12, 445 November
Week 46 in 445 November 13, 445 November 19, 445 November
Week 47 in 445 November 20, 445 November 26, 445 November
Week 48 in 445 November 27, 445 December 3, 445 November / December
Week 49 in 445 December 4, 445 December 10, 445 December
Week 50 in 445 December 11, 445 December 17, 445 December
Week 51 in 445 December 18, 445 December 24, 445 December
Week 52 in 445 December 25, 445 December 31, 445 December

Calendars 445

January 445
MoTuWeThFrSaSu
Week 521
Week 12345678
Week 29101112131415
Week 316171819202122
Week 423242526272829
Week 53031
February 445
MoTuWeThFrSaSu
Week 512345
Week 66789101112
Week 713141516171819
Week 820212223242526
Week 92728
March 445
MoTuWeThFrSaSu
Week 912345
Week 106789101112
Week 1113141516171819
Week 1220212223242526
Week 132728293031
April 445
MoTuWeThFrSaSu
Week 1312
Week 143456789
Week 1510111213141516
Week 1617181920212223
Week 1724252627282930
May 445
MoTuWeThFrSaSu
Week 181234567
Week 19891011121314
Week 2015161718192021
Week 2122232425262728
Week 22293031
June 445
MoTuWeThFrSaSu
Week 221234
Week 23567891011
Week 2412131415161718
Week 2519202122232425
Week 262627282930
July 445
MoTuWeThFrSaSu
Week 2612
Week 273456789
Week 2810111213141516
Week 2917181920212223
Week 3024252627282930
Week 3131
August 445
MoTuWeThFrSaSu
Week 31123456
Week 3278910111213
Week 3314151617181920
Week 3421222324252627
Week 3528293031
September 445
MoTuWeThFrSaSu
Week 35123
Week 3645678910
Week 3711121314151617
Week 3818192021222324
Week 39252627282930
October 445
MoTuWeThFrSaSu
Week 391
Week 402345678
Week 419101112131415
Week 4216171819202122
Week 4323242526272829
Week 443031
November 445
MoTuWeThFrSaSu
Week 4412345
Week 456789101112
Week 4613141516171819
Week 4720212223242526
Week 4827282930
December 445
MoTuWeThFrSaSu
Week 1123
Week 4945678910
Week 5011121314151617
Week 5118192021222324
Week 5225262728293031

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 445 starts on January 2, 445 and ends on January 8, 445 (ISO 8601, Monday to Sunday). 445 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 445 have?

445 has 52 ISO weeks.

When does week 1 of 445 start?

Week 1 of 445 starts on January 2, 445 and ends on January 8, 445 (ISO 8601, Monday to Sunday).

When does the last week of 445 end?

Week 52 of 445 starts on December 25, 445 and ends on December 31, 445 (ISO 8601, Monday to Sunday).

Which years have 53 weeks?

The next years with 53 ISO weeks are 448, 454, 460, 465, 471.

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.