Week 17 in 1643
Week 17 of 1643 begins on April 20, 1643 and ends on April 26, 1643. It covers days 110 to 116 of the year and falls in quarter 2.
Weeks since this week: 20006
Week 17 of 1643 at a glance
| Starts (Monday) | April 20, 1643 |
|---|---|
| Ends (Sunday) | April 26, 1643 |
| US week (Sunday to Saturday) | 17 (April 19, 1643) |
| Month | April |
| Quarter | Q2 |
| Days of the year | 110–116 |
| Year completed at the end of this week | 31.8% |
| Weeks left in 1643 after this week | 36 |
| Weeks in 1643 | 53 |
| Even or odd week | Odd |
Calendar for April 1643
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(US version) (EU/ISO Version)
All Weeks in 1643:
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 1643. It runs from April 19, 1643 to April 25, 1643.
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 1641 | April 22, 1641 | April 28, 1641 |
| Week 17 in 1642 | April 21, 1642 | April 27, 1642 |
| Week 17 in 1644 | April 25, 1644 | May 1, 1644 |
| Week 17 in 1645 | April 24, 1645 | April 30, 1645 |
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 1643 began on December 29, 1642. 1643 has 53 ISO weeks, because 1 January 1643 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.
Find the week number of a date
Frequently Asked Questions (FAQ)
When does week 17 of 1643 start and end?
Week 17 of 1643 starts on April 20, 1643 and ends on April 26, 1643 (ISO 8601, Monday to Sunday).
Which month is week 17 of 1643 in?
Week 17 of 1643 is in April.
What dates are in week 17 of 1643?
April 20, 1643, April 21, 1643, April 22, 1643, April 23, 1643, April 24, 1643, April 25, 1643, and April 26, 1643
How many weeks does 1643 have?
1643 has 53 ISO weeks, because 1 January 1643 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 1643. It runs from April 19, 1643 to April 25, 1643.