Week 49 in 2011
Week 49 of 2011 begins on December 5, 2011 and ends on December 11, 2011. It covers days 339 to 345 of the year and falls in quarter 4.
Weeks since this week: 774
Week 49 of 2011 at a glance
| Starts (Monday) | December 5, 2011 |
|---|---|
| Ends (Sunday) | December 11, 2011 |
| US week (Sunday to Saturday) | 50 (December 4, 2011) |
| Month | December |
| Quarter | Q4 |
| Days of the year | 339–345 |
| Year completed at the end of this week | 94.5% |
| Weeks left in 2011 after this week | 3 |
| Weeks in 2011 | 52 |
| Even or odd week | Odd |
Calendar for December 2011
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 2011:
Past & Future Week Number 49:
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 50 of 2011. It runs from December 4, 2011 to December 10, 2011.
Even and odd weeks
Week 49 is an odd week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.
Week 49 in other years
| From | To | |
|---|---|---|
| Week 49 in 2009 | November 30, 2009 | December 6, 2009 |
| Week 49 in 2010 | December 6, 2010 | December 12, 2010 |
| Week 49 in 2012 | December 3, 2012 | December 9, 2012 |
| Week 49 in 2013 | December 2, 2013 | December 8, 2013 |
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 2011 began on January 3, 2011. 2011 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 49 of 2011 start and end?
Week 49 of 2011 starts on December 5, 2011 and ends on December 11, 2011 (ISO 8601, Monday to Sunday).
Which month is week 49 of 2011 in?
Week 49 of 2011 is in December.
What dates are in week 49 of 2011?
December 5, 2011, December 6, 2011, December 7, 2011, December 8, 2011, December 9, 2011, December 10, 2011, and December 11, 2011
How many weeks does 2011 have?
2011 has 52 ISO weeks.
Is week 49 an even or odd week?
Week 49 is an odd 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 50 of 2011. It runs from December 4, 2011 to December 10, 2011.