Week 23 in 2009
Week 23 of 2009 begins on June 1, 2009 and ends on June 7, 2009. It covers days 152 to 158 of the year and falls in quarter 2.
Weeks since this week: 904
Week 23 of 2009 at a glance
| Starts (Monday) | June 1, 2009 |
|---|---|
| Ends (Sunday) | June 7, 2009 |
| US week (Sunday to Saturday) | 23 (May 31, 2009) |
| Month | June |
| Quarter | Q2 |
| Days of the year | 152–158 |
| Year completed at the end of this week | 43.3% |
| Weeks left in 2009 after this week | 30 |
| Weeks in 2009 | 53 |
| Even or odd week | Odd |
Calendar for June 2009
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 2009:
Past & Future Week Number 23:
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 23 of 2009. It runs from May 31, 2009 to June 6, 2009.
Even and odd weeks
Week 23 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 23 in other years
| From | To | |
|---|---|---|
| Week 23 in 2007 | June 4, 2007 | June 10, 2007 |
| Week 23 in 2008 | June 2, 2008 | June 8, 2008 |
| Week 23 in 2010 | June 7, 2010 | June 13, 2010 |
| Week 23 in 2011 | June 6, 2011 | June 12, 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 23 of 2009 start and end?
Week 23 of 2009 starts on June 1, 2009 and ends on June 7, 2009 (ISO 8601, Monday to Sunday).
Which month is week 23 of 2009 in?
Week 23 of 2009 is in June.
What dates are in week 23 of 2009?
June 1, 2009, June 2, 2009, June 3, 2009, June 4, 2009, June 5, 2009, June 6, 2009, and June 7, 2009
How many weeks does 2009 have?
2009 has 53 ISO weeks, because 1 January 2009 falls on a Thursday.
Is week 23 an even or odd week?
Week 23 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 23 of 2009. It runs from May 31, 2009 to June 6, 2009.