Week numbers 2040

2040 has

ISO weeks

Week 1 of 2040 starts on Monday, January 2, 2040, and week 52 ends on Sunday, December 30, 2040. Weeks follow ISO 8601: Monday start, week 1 holds the year's first Thursday.

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Week 1	January 2 – January 8, 2040
Week 2	January 9 – January 15, 2040
Week 3	January 16 – January 22, 2040
Week 4	January 23 – January 29, 2040
Week 5	January 30 – February 5, 2040
Week 6	February 6 – February 12, 2040
Week 7	February 13 – February 19, 2040
Week 8	February 20 – February 26, 2040
Week 9	February 27 – March 4, 2040
Week 10	March 5 – March 11, 2040
Week 11	March 12 – March 18, 2040
Week 12	March 19 – March 25, 2040
Week 13	March 26 – April 1, 2040
Week 14	April 2 – April 8, 2040
Week 15	April 9 – April 15, 2040
Week 16	April 16 – April 22, 2040
Week 17	April 23 – April 29, 2040
Week 18	April 30 – May 6, 2040
Week 19	May 7 – May 13, 2040
Week 20	May 14 – May 20, 2040
Week 21	May 21 – May 27, 2040
Week 22	May 28 – June 3, 2040
Week 23	June 4 – June 10, 2040
Week 24	June 11 – June 17, 2040
Week 25	June 18 – June 24, 2040
Week 26	June 25 – July 1, 2040
Week 27	July 2 – July 8, 2040
Week 28	July 9 – July 15, 2040
Week 29	July 16 – July 22, 2040
Week 30	July 23 – July 29, 2040
Week 31	July 30 – August 5, 2040
Week 32	August 6 – August 12, 2040
Week 33	August 13 – August 19, 2040
Week 34	August 20 – August 26, 2040
Week 35	August 27 – September 2, 2040
Week 36	September 3 – September 9, 2040
Week 37	September 10 – September 16, 2040
Week 38	September 17 – September 23, 2040
Week 39	September 24 – September 30, 2040
Week 40	October 1 – October 7, 2040
Week 41	October 8 – October 14, 2040
Week 42	October 15 – October 21, 2040
Week 43	October 22 – October 28, 2040
Week 44	October 29 – November 4, 2040
Week 45	November 5 – November 11, 2040
Week 46	November 12 – November 18, 2040
Week 47	November 19 – November 25, 2040
Week 48	November 26 – December 2, 2040
Week 49	December 3 – December 9, 2040
Week 50	December 10 – December 16, 2040
Week 51	December 17 – December 23, 2040
Week 52	December 24 – December 30, 2040

How many weeks are in 2040?

2040 has 52 ISO weeks. Most years have 52; a year has 53 when it starts on a Thursday (or on a Wednesday in a leap year).

When does week 1 of 2040 start?

Week 1 of 2040 starts on Monday, January 2, 2040 — ISO week 1 is the week containing the year's first Thursday, so it can start in late December.

What is the Excel formula for week numbers?

=ISOWEEKNUM(A1) returns the ISO week number of the date in A1 (the numbering used on this page); =WEEKNUM(A1) uses the US Sunday-start convention. Both work in Excel and Google Sheets.