Week 20 in 1543
Week 20 of 1543 begins on May 17, 1543 and ends on May 23, 1543. It covers days 137 to 143 of the year and falls in quarter 2.
Weeks since this week: 25220
Week 20 of 1543 at a glance
| Starts (Monday) | May 17, 1543 |
|---|---|
| Ends (Sunday) | May 23, 1543 |
| US week (Sunday to Saturday) | 21 (May 16, 1543) |
| Month | May |
| Quarter | Q2 |
| Days of the year | 137–143 |
| Year completed at the end of this week | 39.2% |
| Weeks left in 1543 after this week | 32 |
| Weeks in 1543 | 52 |
| Even or odd week | Even |
Calendar for May 1543
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 1543:
Past & Future Week Number 20:
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 21 of 1543. It runs from May 16, 1543 to May 22, 1543.
Even and odd weeks
Week 20 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 20 in other years
| From | To | |
|---|---|---|
| Week 20 in 1541 | May 12, 1541 | May 18, 1541 |
| Week 20 in 1542 | May 11, 1542 | May 17, 1542 |
| Week 20 in 1544 | May 15, 1544 | May 21, 1544 |
| Week 20 in 1545 | May 14, 1545 | May 20, 1545 |
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 1543 began on January 4, 1543. 1543 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 20 of 1543 start and end?
Week 20 of 1543 starts on May 17, 1543 and ends on May 23, 1543 (ISO 8601, Monday to Sunday).
Which month is week 20 of 1543 in?
Week 20 of 1543 is in May.
What dates are in week 20 of 1543?
May 17, 1543, May 18, 1543, May 19, 1543, May 20, 1543, May 21, 1543, May 22, 1543, and May 23, 1543
How many weeks does 1543 have?
1543 has 52 ISO weeks.
Is week 20 an even or odd week?
Week 20 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 21 of 1543. It runs from May 16, 1543 to May 22, 1543.