Week 17 in 2009
Week 17 of 2009 begins on April 20, 2009 and ends on April 26, 2009. It covers days 110 to 116 of the year and falls in quarter 2.
Weeks since this week: 911
Week 17 of 2009 at a glance
| Starts (Monday) | April 20, 2009 |
|---|---|
| Ends (Sunday) | April 26, 2009 |
| US week (Sunday to Saturday) | 17 (April 19, 2009) |
| Month | April |
| Quarter | Q2 |
| Days of the year | 110–116 |
| Year completed at the end of this week | 31.8% |
| Weeks left in 2009 after this week | 36 |
| Weeks in 2009 | 53 |
| Even or odd week | Odd |
Calendar for April 2009
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(US version) (EU/ISO Version)
All Weeks in 2009:
Past & Future Week Number 17:
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 17 of 2009. It runs from April 19, 2009 to April 25, 2009.
Even and odd weeks
Week 17 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 17 in other years
| From | To | |
|---|---|---|
| Week 17 in 2007 | April 23, 2007 | April 29, 2007 |
| Week 17 in 2008 | April 21, 2008 | April 27, 2008 |
| Week 17 in 2010 | April 26, 2010 | May 2, 2010 |
| Week 17 in 2011 | April 25, 2011 | May 1, 2011 |
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 2009 began on December 29, 2008. 2009 has 53 ISO weeks, because 1 January 2009 falls on a Thursday.
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.
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Frequently Asked Questions (FAQ)
When does week 17 of 2009 start and end?
Week 17 of 2009 starts on April 20, 2009 and ends on April 26, 2009 (ISO 8601, Monday to Sunday).
Which month is week 17 of 2009 in?
Week 17 of 2009 is in April.
What dates are in week 17 of 2009?
April 20, 2009, April 21, 2009, April 22, 2009, April 23, 2009, April 24, 2009, April 25, 2009, and April 26, 2009
How many weeks does 2009 have?
2009 has 53 ISO weeks, because 1 January 2009 falls on a Thursday.
Is week 17 an even or odd week?
Week 17 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 17 of 2009. It runs from April 19, 2009 to April 25, 2009.