What Day of the Week Is September 11?
September 11, 2027 falls on a Saturday. This year, September 11, 2026 was a Friday.
It is day 254 of 2027, and 111 days of the year come after it. The date sits in ISO week 36 and in the third quarter, July to September. North of the equator it is day 83 of summer, and fall starts on September 23. In Australia and the rest of the south, it is winter. The Moon is a waxing gibbous that day, and the next full moon is on Wednesday, September 15, 2027. It is not a US federal holiday.
September 11 from 2025 to 2028
The same date in four years, side by side. Moon phases use US Eastern dates.
| Fact | 2025 | 2026 | 2027 | 2028 |
|---|---|---|---|---|
| Day of the week | Thursday | Friday | Saturday | Monday |
| Day of the year | 254 of 365 | 254 of 365 | 254 of 365 | 255 of 366 |
| Days left in the year | 111 | 111 | 111 | 111 |
| ISO week | 37 | 37 | 36 | 37 |
| Quarter | Q3 | Q3 | Q3 | Q3 |
| Season (north) | Day 84 of summer | Day 83 of summer | Day 83 of summer | Day 84 of summer |
| Moon (US Eastern) | Waning gibbous | Waxing crescent | Waxing gibbous | Last quarter |
| US federal holiday | No | No | No | No |
| Other holidays | Patriot Day | Patriot Day | Patriot Day | Patriot Day |
Holidays on September 11
Every year, September 11 is Patriot Day.
Holidays that move with the calendar land on September 11 in some years from 2026 to 2035.
| Holiday or observance | Years on September 11 |
|---|---|
| Grandparents Day | 2033 |
| Ganesh Chaturthi | 2029 |
Born on September 11
In most horoscope tables, September 11 falls under Virgo, the sign that runs from August 23 to September 22.
The birthstone for September is the sapphire on the American Gem Society list.
September 11 every year from 1950 to 2049
Find the decade on the left, then the last digit of the year across the top. A baby born on September 11, 1990 arrived on a Tuesday, and one born on September 11, 2000 on a Monday. Weekends are shaded.
| Years | …0 | …1 | …2 | …3 | …4 | …5 | …6 | …7 | …8 | …9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | Mon | Tue | Thu | Fri | Sat | Sun | Tue | Wed | Thu | Fri |
| 1960s | Sun | Mon | Tue | Wed | Fri | Sat | Sun | Mon | Wed | Thu |
| 1970s | Fri | Sat | Mon | Tue | Wed | Thu | Sat | Sun | Mon | Tue |
| 1980s | Thu | Fri | Sat | Sun | Tue | Wed | Thu | Fri | Sun | Mon |
| 1990s | Tue | Wed | Fri | Sat | Sun | Mon | Wed | Thu | Fri | Sat |
| 2000s | Mon | Tue | Wed | Thu | Sat | Sun | Mon | Tue | Thu | Fri |
| 2010s | Sat | Sun | Tue | Wed | Thu | Fri | Sun | Mon | Tue | Wed |
| 2020s | Fri | Sat | Sun | Mon | Wed | Thu | Fri | Sat | Mon | Tue |
| 2030s | Wed | Thu | Sat | Sun | Mon | Tue | Thu | Fri | Sat | Sun |
| 2040s | Tue | Wed | Thu | Fri | Sun | Mon | Tue | Wed | Fri | Sat |
When September 11 is on the same weekday again
After 2027, September 11 is next a Saturday in 2032.
| Day of the week | Next year after 2027 |
|---|---|
| Monday | 2028 |
| Tuesday | 2029 |
| Wednesday | 2030 |
| Thursday | 2031 |
| Friday | 2037 |
| Saturday | 2032 |
| Sunday | 2033 |
September 11 by year
| Year | Day of the week | Weekend or weekday |
|---|---|---|
| 2023 | Monday | Weekday |
| 2024 | Wednesday | Weekday |
| 2025 | Thursday | Weekday |
| 2026 | Friday | Weekday |
| 2027 | Saturday | Weekend |
| 2028 | Monday | Weekday |
| 2029 | Tuesday | Weekday |
| 2030 | Wednesday | Weekday |
| 2031 | Thursday | Weekday |
| 2032 | Saturday | Weekend |
| 2033 | Sunday | Weekend |
| 2034 | Monday | Weekday |
Why the weekday changes
A common year is 365 days, one day more than 52 weeks. So September 11 moves on one weekday each year: Friday in 2026, Saturday in 2027. The jump is two days when February 29 comes in between, so September 11, 2028 is a Monday, two on from 2027's Saturday. Between 1901 and 2099, the whole pattern repeats every 28 years.
More about September 11 on this site
September 11 questions
What day of the week is September 11, 2027?
September 11, 2027 is a Saturday. It is day 254 of the year and falls in ISO week 36.
Is September 11 a holiday?
Every year, September 11 is Patriot Day. September 11, 2027 is not a US federal holiday.
Cite this page
APA: ClockTotals. (2026, October 28). What Day of the Week Is September 11? https://clocktotals.com/what-day-is/september-11/
MLA: “What Day of the Week Is September 11?” ClockTotals, 28 Oct. 2026, clocktotals.com/what-day-is/september-11/.
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