Week numbers 8
8 has 52 ISO weeks. Week 1: Dec 31, 7 – Jan 6, 8 · Week 52: Dec 22 – 28
8 at a glance
| Weeks in 8 | 52 |
|---|---|
| Week 1 | December 31, 7 – January 6, 8 |
| Week 52 | December 22, 8 – December 28, 8 |
| Days in 8 | 366 |
| Leap year | Yes |
All Weeks in 8
| Week | From | To | Month |
|---|---|---|---|
| Week 1 in 8 | December 31, 7 | January 6, 8 | December / January |
| Week 2 in 8 | January 7, 8 | January 13, 8 | January |
| Week 3 in 8 | January 14, 8 | January 20, 8 | January |
| Week 4 in 8 | January 21, 8 | January 27, 8 | January |
| Week 5 in 8 | January 28, 8 | February 3, 8 | January / February |
| Week 6 in 8 | February 4, 8 | February 10, 8 | February |
| Week 7 in 8 | February 11, 8 | February 17, 8 | February |
| Week 8 in 8 | February 18, 8 | February 24, 8 | February |
| Week 9 in 8 | February 25, 8 | March 2, 8 | February / March |
| Week 10 in 8 | March 3, 8 | March 9, 8 | March |
| Week 11 in 8 | March 10, 8 | March 16, 8 | March |
| Week 12 in 8 | March 17, 8 | March 23, 8 | March |
| Week 13 in 8 | March 24, 8 | March 30, 8 | March |
| Week 14 in 8 | March 31, 8 | April 6, 8 | March / April |
| Week 15 in 8 | April 7, 8 | April 13, 8 | April |
| Week 16 in 8 | April 14, 8 | April 20, 8 | April |
| Week 17 in 8 | April 21, 8 | April 27, 8 | April |
| Week 18 in 8 | April 28, 8 | May 4, 8 | April / May |
| Week 19 in 8 | May 5, 8 | May 11, 8 | May |
| Week 20 in 8 | May 12, 8 | May 18, 8 | May |
| Week 21 in 8 | May 19, 8 | May 25, 8 | May |
| Week 22 in 8 | May 26, 8 | June 1, 8 | May / June |
| Week 23 in 8 | June 2, 8 | June 8, 8 | June |
| Week 24 in 8 | June 9, 8 | June 15, 8 | June |
| Week 25 in 8 | June 16, 8 | June 22, 8 | June |
| Week 26 in 8 | June 23, 8 | June 29, 8 | June |
| Week 27 in 8 | June 30, 8 | July 6, 8 | June / July |
| Week 28 in 8 | July 7, 8 | July 13, 8 | July |
| Week 29 in 8 | July 14, 8 | July 20, 8 | July |
| Week 30 in 8 | July 21, 8 | July 27, 8 | July |
| Week 31 in 8 | July 28, 8 | August 3, 8 | July / August |
| Week 32 in 8 | August 4, 8 | August 10, 8 | August |
| Week 33 in 8 | August 11, 8 | August 17, 8 | August |
| Week 34 in 8 | August 18, 8 | August 24, 8 | August |
| Week 35 in 8 | August 25, 8 | August 31, 8 | August |
| Week 36 in 8 | September 1, 8 | September 7, 8 | September |
| Week 37 in 8 | September 8, 8 | September 14, 8 | September |
| Week 38 in 8 | September 15, 8 | September 21, 8 | September |
| Week 39 in 8 | September 22, 8 | September 28, 8 | September |
| Week 40 in 8 | September 29, 8 | October 5, 8 | September / October |
| Week 41 in 8 | October 6, 8 | October 12, 8 | October |
| Week 42 in 8 | October 13, 8 | October 19, 8 | October |
| Week 43 in 8 | October 20, 8 | October 26, 8 | October |
| Week 44 in 8 | October 27, 8 | November 2, 8 | October / November |
| Week 45 in 8 | November 3, 8 | November 9, 8 | November |
| Week 46 in 8 | November 10, 8 | November 16, 8 | November |
| Week 47 in 8 | November 17, 8 | November 23, 8 | November |
| Week 48 in 8 | November 24, 8 | November 30, 8 | November |
| Week 49 in 8 | December 1, 8 | December 7, 8 | December |
| Week 50 in 8 | December 8, 8 | December 14, 8 | December |
| Week 51 in 8 | December 15, 8 | December 21, 8 | December |
| Week 52 in 8 | December 22, 8 | December 28, 8 | December |
Calendars 8
| January 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 1 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Week 2 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Week 3 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Week 4 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| Week 5 | 28 | 29 | 30 | 31 | |||
| February 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 5 | 1 | 2 | 3 | ||||
| Week 6 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Week 7 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Week 8 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Week 9 | 25 | 26 | 27 | 28 | 29 | ||
| March 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 9 | 1 | 2 | |||||
| Week 10 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Week 11 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Week 12 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Week 13 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Week 14 | 31 | ||||||
| April 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 14 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Week 15 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Week 16 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Week 17 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| Week 18 | 28 | 29 | 30 | ||||
| May 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 18 | 1 | 2 | 3 | 4 | |||
| Week 19 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Week 20 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Week 21 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| Week 22 | 26 | 27 | 28 | 29 | 30 | 31 | |
| June 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 22 | 1 | ||||||
| Week 23 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Week 24 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Week 25 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Week 26 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| Week 27 | 30 | ||||||
| July 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 27 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Week 28 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Week 29 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Week 30 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| Week 31 | 28 | 29 | 30 | 31 | |||
| August 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 31 | 1 | 2 | 3 | ||||
| Week 32 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Week 33 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Week 34 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Week 35 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| September 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 36 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Week 37 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| Week 38 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Week 39 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| Week 40 | 29 | 30 | |||||
| October 8 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 40 | 1 | 2 | 3 | 4 | 5 | ||
| Week 41 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Week 42 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Week 43 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Week 44 | 27 | 28 | 29 | 30 | 31 | ||
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 8 starts on December 31, 7 and ends on January 6, 8 (ISO 8601, Monday to Sunday). 8 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 8 have?
8 has 52 ISO weeks.
When does week 1 of 8 start?
Week 1 of 8 starts on December 31, 7 and ends on January 6, 8 (ISO 8601, Monday to Sunday).
When does the last week of 8 end?
Week 52 of 8 starts on December 22, 8 and ends on December 28, 8 (ISO 8601, Monday to Sunday).
Which years have 53 weeks?
The next years with 53 ISO weeks are 9, 15, 20, 26, 32.
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.