September 28, 2026 falls on a Monday
September 28, 2026 is a Monday. It is 5 days from today, September 23, 2026. The date is day 271 of 365 in 2026, it sits in ISO week 40, and it is the 28th of a 30-day month with 2 days after it.
What day of the week is September 28?
In 2026 it is a Monday. The weekday is not a property of the date itself, it is a property of the date in a given year, so the honest answer always names the year. A common year is 365 days, which is 52 weeks plus one spare day, so a fixed date moves forward one weekday from one year to the next. A leap year inserts a second spare day, so the step is two whenever 29 February falls inside the gap. That is why September 28 works its way around the week rather than repeating on a tidy schedule.
September 28 in the next few years
| Year | Weekday | Day of year | ISO week | Leap year |
|---|---|---|---|---|
| 2026 | Monday | 271 | 40 | no |
| 2027 | Tuesday | 271 | 39 | no |
| 2028 | Thursday | 272 | 39 | yes |
| 2029 | Friday | 271 | 39 | no |
| 2030 | Saturday | 271 | 39 | no |
| 2031 | Sunday | 271 | 39 | no |
| 2032 | Tuesday | 272 | 40 | yes |
| 2033 | Wednesday | 271 | 39 | no |
Between 2026 and 2027 the weekday moves from Monday to Tuesday, a step of 1. The day-of-year column also moves: September 28 is day 271 in a common year and day 272 in a leap year, because it sits after 29 February.
How often does September 28 fall at a weekend?
Counting the 28 occurrences from 2026 to 2053, September 28 lands on a Saturday 4 times and on a Sunday 4 times, so 8 of those 28 years put it at a weekend. Over a full 28-year stretch the Gregorian calendar repeats itself, and a fixed date visits each weekday four times, so the long-run answer is two weekend years in every seven.
Where September 28 sits in the calendar
September 28 is the 28th day of September, a month of 30 days in 2026, leaving 2 days of the month after it. Measured from 1 January it is 270 days into the year, and 94 days remain to 31 December, which puts it 74.2% of the way through 2026. In September 2026 the other Mondays are the 7th, 14th, 21st, because weekdays repeat every seven days inside a month just as they do across one.
What else happens around September 28?
No holiday or widely marked observance falls within five days of September 28 in 2026, which makes it a quiet stretch of the calendar. The nearest marked dates either side can be found on the when is it index.
How far away is September 28?
The next September 28 is Monday, September 28, 2026, 5 days from today. That is 0 whole weeks and 5 days, or 0.7 weeks written as a decimal. To count towards it second by second, use the date calculator.
Questions
- What day of the week is September 28, 2026?
- A Monday. It is day 271 of 365 and falls in ISO week 40.
- What day of the week is September 28 next year?
- In 2027 it is a Tuesday.
- What number day of the year is September 28?
- Day 271 in a common year and day 272 in a leap year. See day 271 for more.
- Which week of the year is September 28 in?
- ISO week 40 in 2026. The week 40 page lists every date in it.
Nearby dates
The 28th of other months
All 366 dates · Week 40 · Day 271 of the year · Event countdowns · When is it? · Date calculator