September 2028 Calendar
September 2028 has 30 days, 21 of them working days once Saturdays and Sundays are removed. Week numbers follow ISO 8601, which gives a week to the year that owns its Thursday — that is why 1 January can fall in week 53 of the year before. Marked days: Labor Day. The ones that move are placed by a rule, printed beside each date.
Holiday rules and week numbering checked · How we check
30 days, 21 of them working days. The number down the left is the ISO week; public holidays are not deducted, because which ones apply depends on where you are.
| wk | Su | Mo | Tu | We | Th | Fr | Sa |
|---|---|---|---|---|---|---|---|
| 35 | 27 | 28 | 29 | 30 | 31 | 1 | 2 |
| 36 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 37 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 38 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 39 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
How many of each day
Every month holds four of every weekday and then two or three days over. Which weekdays get the extra one is the only thing separating this month from any other of the same length — and it is what decides a five-payday month for anyone paid weekly.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 5 | 5 | 4 |
- Friday, Saturday come round five times; every other day four.
- It opens on a Friday and closes on a Saturday, covering ISO weeks 35 to 39 in quarter 3.
- Day 245 to day 274 of 2028, leaving 92 days in the year after it.
- The identical grid returns in 2017, 2023, 2034 and 2045 — same starting weekday, same length, so a wall calendar from one of those years hangs again unchanged.
Marked days in September 2028
Underlined in the grid above. Each one links to the count of days until it and the rule that places it, because half of these are not on a fixed date at all.
Labor Day Mon, September 4, 2028
Which day does the week start on?
Laid out Sunday first, as US calendars are.
What do the week numbers mean?
The number down the left of each row is the ISO 8601 week, which runs Monday to Sunday and belongs to the year that owns its Thursday. September 2028 covers weeks 35 to 39. Every week of 2028, numbered.
Other months of 2028
Other years
Questions people actually ask
- How many days does September 2028 have?
- 30, of which 21 are working days once Saturdays and Sundays are removed and 9 are weekend days. Public holidays are not deducted from that figure, because which ones apply depends on where you are — Labor Day falls in this month.
- How many Fridays, Saturdays are in September 2028?
- Five of each — Friday, Saturday come round a fifth time where every other weekday comes four. That is what separates this month from any other of the same length, and for anyone paid weekly it is the difference between four cheques and five.
- What week number is September 2028?
- It spans ISO weeks 35 to 39. An ISO week runs Monday to Sunday and belongs to the year that owns its Thursday, which is why the first days of January can carry week 53 of the year before. The US business convention of numbering from 1 January gives different answers, and payroll systems disagree about which one they mean.
- What day of the week does September 2028 start on?
- A Friday, and it ends on a Saturday. It runs from day 245 to day 274 of the year, leaving 92 days after it.