Week 40 in 1171
Week 40 of 1171 begins on October 4, 1171 and ends on October 10, 1171. It covers days 277 to 283 of the year and falls in quarter 4.
Weeks since this week: 44611
Week 40 of 1171 at a glance
| Starts (Monday) | October 4, 1171 |
|---|---|
| Ends (Sunday) | October 10, 1171 |
| US week (Sunday to Saturday) | 41 (October 3, 1171) |
| Month | October |
| Quarter | Q4 |
| Days of the year | 277–283 |
| Year completed at the end of this week | 77.5% |
| Weeks left in 1171 after this week | 12 |
| Weeks in 1171 | 52 |
| Even or odd week | Even |
Calendar for October 1171
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(US version) (EU/ISO Version)
All Weeks in 1171:
Past & Future Week Number 40:
US and ISO week numbers
In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 41 of 1171. It runs from October 3, 1171 to October 9, 1171.
Even and odd weeks
Week 40 is an even week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.
Week 40 in other years
| From | To | |
|---|---|---|
| Week 40 in 1169 | September 29, 1169 | October 5, 1169 |
| Week 40 in 1170 | September 28, 1170 | October 4, 1170 |
| Week 40 in 1172 | October 2, 1172 | October 8, 1172 |
| Week 40 in 1173 | October 1, 1173 | October 7, 1173 |
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 1171 began on January 4, 1171. 1171 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.
Find the week number of a date
Frequently Asked Questions (FAQ)
When does week 40 of 1171 start and end?
Week 40 of 1171 starts on October 4, 1171 and ends on October 10, 1171 (ISO 8601, Monday to Sunday).
Which month is week 40 of 1171 in?
Week 40 of 1171 is in October.
What dates are in week 40 of 1171?
October 4, 1171, October 5, 1171, October 6, 1171, October 7, 1171, October 8, 1171, October 9, 1171, and October 10, 1171
How many weeks does 1171 have?
1171 has 52 ISO weeks.
Is week 40 an even or odd week?
Week 40 is an even week.
What is the US week number for this week?
In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 41 of 1171. It runs from October 3, 1171 to October 9, 1171.