Week 21 of 2021 runs May 24, 2021 to May 30, 2021.
Week 21 starts on Monday, May 24, 2021 and ends on Sunday, May 30, 2021. It's the 144th day of the year, sits in Q2, and falls in May. By the end of this week, 150 of 365 days are gone, putting 2021 at 41.1%.
This week includes Victoria Day, so it has 4 working days instead of the usual 5. Need a different week? Browse the full 2021 week calendar, or jump to this week's number.
Week 21 at a glance
The 7 days of week 21
Every date in week 21 of 2021, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 144 | Weekday | Victoria Day | |
| Tuesday | Day 145 | Weekday | ||
| Wednesday | Day 146 | Weekday | ||
| Thursday | Day 147 | Weekday | ||
| Friday | Day 148 | Weekday | ||
| Saturday | Day 149 | Weekend | ||
| Sunday | Day 150 | Weekend |
What week 21 of 2021 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 21 is one piece of that system.
In 2021, week 21 covers May 24 – May 30, 2021. That's May, deep in Q2. The same week number shifts by a day or two each year, so week 21 in 2022 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 21 of 2021
🇨🇦 Canada
Victoria Day
FederalWeek 21 across years
The same ISO week number lands on different dates each year. Here's how week 21 shifts.
| Year | From (Mon) | To (Sun) | Notable | |
|---|---|---|---|---|
| 2024 | Victoria Day | view → |
Week 21 of 2021: questions and answers
What days are in week 21 of 2021?
Week 21 of 2021 runs from May 24, 2021 (Monday) through May 30, 2021 (Sunday). It spans May.
What month is week 21 in 2021?
Week 21 of 2021 falls entirely in May 2021.
How many working days are in week 21 of 2021?
Week 21 of 2021 has 4 working days — reduced from 5 due to Victoria Day falling on a weekday.
What week is Victoria Day in 2021?
Victoria Day falls in ISO week 21 of 2021 (May 24 – May 30, 2021).
What quarter is week 21 of 2021 in?
Week 21 of 2021 is in Q2 (2021). The week starts on day 144 of 365.
What is ISO week 21?
ISO week 21 is defined by the ISO 8601 international standard. It begins on Monday, May 24, 2021, and ends on Sunday, May 30, 2021. It is week 40% through the ISO year 2021.