Week 20 of 2027 runs May 17, 2027 to May 23, 2027.
Week 20 starts on Monday, May 17, 2027 and ends on Sunday, May 23, 2027. It's the 137th day of the year, sits in Q2, and falls in May. By the end of this week, 143 of 365 days are gone, putting 2027 at 39.2%.
There are no public holidays this week, so all 5 weekdays are working days. Need a different week? Browse the full 2027 week calendar, or jump to this week's number.
Week 20 at a glance
The 7 days of week 20
Every date in week 20 of 2027, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 137 | Weekday | ||
| Tuesday | Day 138 | Weekday | ||
| Wednesday | Day 139 | Weekday | ||
| Thursday | Day 140 | Weekday | ||
| Friday | Day 141 | Weekday | ||
| Saturday | Day 142 | Weekend | ||
| Sunday | Day 143 | Weekend |
What week 20 of 2027 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 20 is one piece of that system.
In 2027, week 20 covers May 17 – May 23, 2027. That's May, deep in Q2. The same week number shifts by a day or two each year, so week 20 in 2028 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 20 of 2027
No major public holidays in week 20 of 2027 across the US, UK, Canada, or Australia.
Week 20 across years
The same ISO week number lands on different dates each year. Here's how week 20 shifts.
Week 20 of 2027: questions and answers
What days are in week 20 of 2027?
Week 20 of 2027 runs from May 17, 2027 (Monday) through May 23, 2027 (Sunday). It spans May.
What month is week 20 in 2027?
Week 20 of 2027 falls entirely in May 2027.
How many working days are in week 20 of 2027?
Week 20 of 2027 has 5 working days.
What quarter is week 20 of 2027 in?
Week 20 of 2027 is in Q2 (2027). The week starts on day 137 of 365.
What is ISO week 20?
ISO week 20 is defined by the ISO 8601 international standard. It begins on Monday, May 17, 2027, and ends on Sunday, May 23, 2027. It is week 38% through the ISO year 2027.