Week numbers 102
102 has 52 ISO weeks. Week 1: Jan 2 – 8 · Week 52: Dec 25 – 31
102 at a glance
| Weeks in 102 | 52 |
|---|---|
| Week 1 | January 2, 102 – January 8, 102 |
| Week 52 | December 25, 102 – December 31, 102 |
| Days in 102 | 365 |
| Leap year | No |
All Weeks in 102
| Week | From | To | Month |
|---|---|---|---|
| Week 1 in 102 | January 2, 102 | January 8, 102 | January |
| Week 2 in 102 | January 9, 102 | January 15, 102 | January |
| Week 3 in 102 | January 16, 102 | January 22, 102 | January |
| Week 4 in 102 | January 23, 102 | January 29, 102 | January |
| Week 5 in 102 | January 30, 102 | February 5, 102 | January / February |
| Week 6 in 102 | February 6, 102 | February 12, 102 | February |
| Week 7 in 102 | February 13, 102 | February 19, 102 | February |
| Week 8 in 102 | February 20, 102 | February 26, 102 | February |
| Week 9 in 102 | February 27, 102 | March 5, 102 | February / March |
| Week 10 in 102 | March 6, 102 | March 12, 102 | March |
| Week 11 in 102 | March 13, 102 | March 19, 102 | March |
| Week 12 in 102 | March 20, 102 | March 26, 102 | March |
| Week 13 in 102 | March 27, 102 | April 2, 102 | March / April |
| Week 14 in 102 | April 3, 102 | April 9, 102 | April |
| Week 15 in 102 | April 10, 102 | April 16, 102 | April |
| Week 16 in 102 | April 17, 102 | April 23, 102 | April |
| Week 17 in 102 | April 24, 102 | April 30, 102 | April |
| Week 18 in 102 | May 1, 102 | May 7, 102 | May |
| Week 19 in 102 | May 8, 102 | May 14, 102 | May |
| Week 20 in 102 | May 15, 102 | May 21, 102 | May |
| Week 21 in 102 | May 22, 102 | May 28, 102 | May |
| Week 22 in 102 | May 29, 102 | June 4, 102 | May / June |
| Week 23 in 102 | June 5, 102 | June 11, 102 | June |
| Week 24 in 102 | June 12, 102 | June 18, 102 | June |
| Week 25 in 102 | June 19, 102 | June 25, 102 | June |
| Week 26 in 102 | June 26, 102 | July 2, 102 | June / July |
| Week 27 in 102 | July 3, 102 | July 9, 102 | July |
| Week 28 in 102 | July 10, 102 | July 16, 102 | July |
| Week 29 in 102 | July 17, 102 | July 23, 102 | July |
| Week 30 in 102 | July 24, 102 | July 30, 102 | July |
| Week 31 in 102 | July 31, 102 | August 6, 102 | July / August |
| Week 32 in 102 | August 7, 102 | August 13, 102 | August |
| Week 33 in 102 | August 14, 102 | August 20, 102 | August |
| Week 34 in 102 | August 21, 102 | August 27, 102 | August |
| Week 35 in 102 | August 28, 102 | September 3, 102 | August / September |
| Week 36 in 102 | September 4, 102 | September 10, 102 | September |
| Week 37 in 102 | September 11, 102 | September 17, 102 | September |
| Week 38 in 102 | September 18, 102 | September 24, 102 | September |
| Week 39 in 102 | September 25, 102 | October 1, 102 | September / October |
| Week 40 in 102 | October 2, 102 | October 8, 102 | October |
| Week 41 in 102 | October 9, 102 | October 15, 102 | October |
| Week 42 in 102 | October 16, 102 | October 22, 102 | October |
| Week 43 in 102 | October 23, 102 | October 29, 102 | October |
| Week 44 in 102 | October 30, 102 | November 5, 102 | October / November |
| Week 45 in 102 | November 6, 102 | November 12, 102 | November |
| Week 46 in 102 | November 13, 102 | November 19, 102 | November |
| Week 47 in 102 | November 20, 102 | November 26, 102 | November |
| Week 48 in 102 | November 27, 102 | December 3, 102 | November / December |
| Week 49 in 102 | December 4, 102 | December 10, 102 | December |
| Week 50 in 102 | December 11, 102 | December 17, 102 | December |
| Week 51 in 102 | December 18, 102 | December 24, 102 | December |
| Week 52 in 102 | December 25, 102 | December 31, 102 | December |
Calendars 102
| January 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 52 | 1 | ||||||
| Week 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Week 2 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Week 3 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Week 4 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| Week 5 | 30 | 31 | |||||
| February 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 5 | 1 | 2 | 3 | 4 | 5 | ||
| Week 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Week 7 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Week 8 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Week 9 | 27 | 28 | |||||
| March 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 9 | 1 | 2 | 3 | 4 | 5 | ||
| Week 10 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Week 11 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Week 12 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Week 13 | 27 | 28 | 29 | 30 | 31 | ||
| April 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 13 | 1 | 2 | |||||
| Week 14 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Week 15 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Week 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Week 17 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| May 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 18 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Week 19 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| Week 20 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Week 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| Week 22 | 29 | 30 | 31 | ||||
| June 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 22 | 1 | 2 | 3 | 4 | |||
| Week 23 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Week 24 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Week 25 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| Week 26 | 26 | 27 | 28 | 29 | 30 | ||
| July 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 26 | 1 | 2 | |||||
| Week 27 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Week 28 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Week 29 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Week 30 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Week 31 | 31 | ||||||
| August 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 31 | 1 | 2 | 3 | 4 | 5 | 6 | |
| Week 32 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Week 33 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Week 34 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| Week 35 | 28 | 29 | 30 | 31 | |||
| September 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 35 | 1 | 2 | 3 | ||||
| Week 36 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Week 37 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Week 38 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Week 39 | 25 | 26 | 27 | 28 | 29 | 30 | |
| October 102 | |||||||
|---|---|---|---|---|---|---|---|
| Mo | Tu | We | Th | Fr | Sa | Su | |
| Week 39 | 1 | ||||||
| Week 40 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Week 41 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Week 42 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Week 43 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| Week 44 | 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 102 starts on January 2, 102 and ends on January 8, 102 (ISO 8601, Monday to Sunday). 102 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 102 have?
102 has 52 ISO weeks.
When does week 1 of 102 start?
Week 1 of 102 starts on January 2, 102 and ends on January 8, 102 (ISO 8601, Monday to Sunday).
When does the last week of 102 end?
Week 52 of 102 starts on December 25, 102 and ends on December 31, 102 (ISO 8601, Monday to Sunday).
Which years have 53 weeks?
The next years with 53 ISO weeks are 105, 111, 116, 122, 128.
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.