Week 38 in 2009
Week 38 of 2009 begins on September 14, 2009 and ends on September 20, 2009. It covers days 257 to 263 of the year and falls in quarter 3.
Weeks since this week: 889
Week 38 of 2009 at a glance
| Starts (Monday) | September 14, 2009 |
|---|---|
| Ends (Sunday) | September 20, 2009 |
| US week (Sunday to Saturday) | 38 (September 13, 2009) |
| Month | September |
| Quarter | Q3 |
| Days of the year | 257–263 |
| Year completed at the end of this week | 72.1% |
| Weeks left in 2009 after this week | 15 |
| Weeks in 2009 | 53 |
| Even or odd week | Even |
Calendar for September 2009
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 2009:
Past & Future Week Number 38:
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 38 of 2009. It runs from September 13, 2009 to September 19, 2009.
Even and odd weeks
Week 38 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 38 in other years
| From | To | |
|---|---|---|
| Week 38 in 2007 | September 17, 2007 | September 23, 2007 |
| Week 38 in 2008 | September 15, 2008 | September 21, 2008 |
| Week 38 in 2010 | September 20, 2010 | September 26, 2010 |
| Week 38 in 2011 | September 19, 2011 | September 25, 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 38 of 2009 start and end?
Week 38 of 2009 starts on September 14, 2009 and ends on September 20, 2009 (ISO 8601, Monday to Sunday).
Which month is week 38 of 2009 in?
Week 38 of 2009 is in September.
What dates are in week 38 of 2009?
September 14, 2009, September 15, 2009, September 16, 2009, September 17, 2009, September 18, 2009, September 19, 2009, and September 20, 2009
How many weeks does 2009 have?
2009 has 53 ISO weeks, because 1 January 2009 falls on a Thursday.
Is week 38 an even or odd week?
Week 38 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 38 of 2009. It runs from September 13, 2009 to September 19, 2009.