What Day of the Week Is September 30?
September 30, 2027 falls on a Thursday. This year, September 30, 2026 was a Wednesday.
It is day 273 of 2027, and 92 days of the year come after it. The date sits in ISO week 39 and in the third quarter, July to September. North of the equator it is day 8 of fall, and winter starts on December 21. In Australia and the rest of the south, it is spring. The Moon is a waxing crescent that day, and the next full moon is on Friday, October 15, 2027. It is not a US federal holiday.
September 30 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 | Tuesday | Wednesday | Thursday | Saturday |
| Day of the year | 273 of 365 | 273 of 365 | 273 of 365 | 274 of 366 |
| Days left in the year | 92 | 92 | 92 | 92 |
| ISO week | 40 | 40 | 39 | 39 |
| Quarter | Q3 | Q3 | Q3 | Q3 |
| Season (north) | Day 9 of fall | Day 9 of fall | Day 8 of fall | Day 9 of fall |
| Moon (US Eastern) | Waxing gibbous | Waning gibbous | Waxing crescent | Waxing gibbous |
| US federal holiday | No | No | No | No |
| Other holidays | National Day for Truth and Reconciliation | National Day for Truth and Reconciliation | National Day for Truth and Reconciliation, Navratri | Yom Kippur, National Day for Truth and Reconciliation |
Holidays on September 30
Every year, September 30 is National Day for Truth and Reconciliation.
Holidays that move with the calendar land on September 30 in some years from 2026 to 2035.
| Holiday or observance | Years on September 30 |
|---|---|
| Yom Kippur | 2028 |
| Isra and Mi'raj | 2035 |
| Navratri | 2027 |
Born on September 30
In most horoscope tables, September 30 falls under Libra, the sign that runs from September 23 to October 22.
The birthstone for September is the sapphire on the American Gem Society list.
September 30 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 30, 1990 arrived on a Sunday, and one born on September 30, 2000 on a Saturday. Weekends are shaded.
| Years | …0 | …1 | …2 | …3 | …4 | …5 | …6 | …7 | …8 | …9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | Sat | Sun | Tue | Wed | Thu | Fri | Sun | Mon | Tue | Wed |
| 1960s | Fri | Sat | Sun | Mon | Wed | Thu | Fri | Sat | Mon | Tue |
| 1970s | Wed | Thu | Sat | Sun | Mon | Tue | Thu | Fri | Sat | Sun |
| 1980s | Tue | Wed | Thu | Fri | Sun | Mon | Tue | Wed | Fri | Sat |
| 1990s | Sun | Mon | Wed | Thu | Fri | Sat | Mon | Tue | Wed | Thu |
| 2000s | Sat | Sun | Mon | Tue | Thu | Fri | Sat | Sun | Tue | Wed |
| 2010s | Thu | Fri | Sun | Mon | Tue | Wed | Fri | Sat | Sun | Mon |
| 2020s | Wed | Thu | Fri | Sat | Mon | Tue | Wed | Thu | Sat | Sun |
| 2030s | Mon | Tue | Thu | Fri | Sat | Sun | Tue | Wed | Thu | Fri |
| 2040s | Sun | Mon | Tue | Wed | Fri | Sat | Sun | Mon | Wed | Thu |
When September 30 is on the same weekday again
After 2027, September 30 is next a Thursday in 2032. The next weekend September 30 is in 2028, on a Saturday.
| Day of the week | Next year after 2027 |
|---|---|
| Monday | 2030 |
| Tuesday | 2031 |
| Wednesday | 2037 |
| Thursday | 2032 |
| Friday | 2033 |
| Saturday | 2028 |
| Sunday | 2029 |
September 30 by year
| Year | Day of the week | Weekend or weekday |
|---|---|---|
| 2023 | Saturday | Weekend |
| 2024 | Monday | Weekday |
| 2025 | Tuesday | Weekday |
| 2026 | Wednesday | Weekday |
| 2027 | Thursday | Weekday |
| 2028 | Saturday | Weekend |
| 2029 | Sunday | Weekend |
| 2030 | Monday | Weekday |
| 2031 | Tuesday | Weekday |
| 2032 | Thursday | Weekday |
| 2033 | Friday | Weekday |
| 2034 | Saturday | Weekend |
Why the weekday changes
A common year is 365 days, one day more than 52 weeks. So September 30 moves on one weekday each year: Wednesday in 2026, Thursday in 2027. The jump is two days when February 29 comes in between, so September 30, 2028 is a Saturday, two on from 2027's Thursday. Between 1901 and 2099, the whole pattern repeats every 28 years.
More about September 30 on this site
September 30 questions
What day of the week is September 30, 2027?
September 30, 2027 is a Thursday. It is day 273 of the year and falls in ISO week 39.
Is September 30 a holiday?
Every year, September 30 is National Day for Truth and Reconciliation. September 30, 2027 is not a US federal holiday.
Cite this page
APA: ClockTotals. (2026, October 28). What Day of the Week Is September 30? https://clocktotals.com/what-day-is/september-30/
MLA: “What Day of the Week Is September 30?” ClockTotals, 28 Oct. 2026, clocktotals.com/what-day-is/september-30/.
Link (HTML): <a href="https://clocktotals.com/what-day-is/september-30/">What Day of the Week Is September 30?</a>