Week 38 of 2023 runs September 18, 2023 to September 24, 2023.
Week 38 starts on Monday, September 18, 2023 and ends on Sunday, September 24, 2023. It's the 261st day of the year, sits in Q3, and falls in September. By the end of this week, 267 of 365 days are gone, putting 2023 at 73.2%.
There are no public holidays this week, so all 5 weekdays are working days. Need a different week? Browse the full 2023 week calendar, or jump to this week's number.
Week 38 at a glance
The 7 days of week 38
Every date in week 38 of 2023, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 261 | Weekday | ||
| Tuesday | Day 262 | Weekday | ||
| Wednesday | Day 263 | Weekday | ||
| Thursday | Day 264 | Weekday | ||
| Friday | Day 265 | Weekday | ||
| Saturday | Day 266 | Weekend | Autumn Equinox | |
| Sunday | Day 267 | Weekend |
What week 38 of 2023 means
ISO 8601 numbers weeks so every week starts on Monday and ends on Sunday. Week 1 is the one holding the year's first Thursday, which is why early January can land in week 52 or 53 of the previous year. Week 38 is one piece of that system.
In 2023, week 38 covers Sep 18 – Sep 24, 2023. That's September, deep in Q3. The same week number shifts by a day or two each year, so week 38 in 2024 won't share these exact dates. The table below shows how it moves.
Want to check a specific date instead of a week number? The week calculator converts any date to its ISO week. Curious how many weeks a year holds? The weeks in a year guide explains 52 versus 53. And the ISO week number page covers the standard end to end.
Holidays in week 38 of 2023
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇦🇺 Australia
Week 38 across years
The same ISO week number lands on different dates each year. Here's how week 38 shifts.
Week 38 of 2023: questions and answers
What days are in week 38 of 2023?
Week 38 of 2023 runs from September 18, 2023 (Monday) through September 24, 2023 (Sunday). It spans September.
What month is week 38 in 2023?
Week 38 of 2023 falls entirely in September 2023.
How many working days are in week 38 of 2023?
Week 38 of 2023 has 5 working days.
What week is Autumn Equinox in 2023?
Autumn Equinox falls in ISO week 38 of 2023 (Sep 18 – Sep 24, 2023).
What quarter is week 38 of 2023 in?
Week 38 of 2023 is in Q3 (2023). The week starts on day 261 of 365.
What is ISO week 38?
ISO week 38 is defined by the ISO 8601 international standard. It begins on Monday, September 18, 2023, and ends on Sunday, September 24, 2023. It is week 73% through the ISO year 2023.