Week 18 in 23
Week 18 of 23 begins on May 1, 23 and ends on May 7, 23. It covers days 121 to 127 of the year and falls in quarter 2.
Weeks since this week: 104533
Week 18 of 23 at a glance
| Starts (Monday) | May 1, 23 |
|---|---|
| Ends (Sunday) | May 7, 23 |
| US week (Sunday to Saturday) | 18 (April 30, 23) |
| Month | May |
| Quarter | Q2 |
| Days of the year | 121–127 |
| Year completed at the end of this week | 34.8% |
| Weeks left in 23 after this week | 34 |
| Weeks in 23 | 52 |
| Even or odd week | Even |
Calendar for May 23
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(US version) (EU/ISO Version)
All Weeks in 23:
Past & Future Week Number 18:
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 18 of 23. It runs from April 30, 23 to May 6, 23.
Even and odd weeks
Week 18 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 18 in other years
| From | To | |
|---|---|---|
| Week 18 in 21 | May 3, 21 | May 9, 21 |
| Week 18 in 22 | May 2, 22 | May 8, 22 |
| Week 18 in 24 | April 29, 24 | May 5, 24 |
| Week 18 in 25 | April 28, 25 | May 4, 25 |
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 23 began on January 2, 23. 23 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 18 of 23 start and end?
Week 18 of 23 starts on May 1, 23 and ends on May 7, 23 (ISO 8601, Monday to Sunday).
Which month is week 18 of 23 in?
Week 18 of 23 is in May.
What dates are in week 18 of 23?
May 1, 23, May 2, 23, May 3, 23, May 4, 23, May 5, 23, May 6, 23, and May 7, 23
How many weeks does 23 have?
23 has 52 ISO weeks.
Is week 18 an even or odd week?
Week 18 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 18 of 23. It runs from April 30, 23 to May 6, 23.