# September 2027 has 30 days, starts on a Wednesday and has 21 US work days.

Last updated November 1, 2026FreeNo signupPrints on one page

Labor Day is on Monday, September 6.

Print September 2027

Weeks start on MondayWeek numbers

September 2027

US federal holidays are shaded on the day each is observed. Weeks start on Sunday.

teampredict.ai/calendar/2027/september

September 2027

September 2027, one row for each week

SSun

MMon

TTue

WWed

TThu

FFri

SSat

1

2

3

4

5

6Labor Day, Labor Day

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

-   Federal holiday, on the day it is observed
-   Holiday date on a weekend
-   Other well-known date

## September 2027 has 22 weekdays and 1 federal day off, which leaves 21 US work days.

September 2027 in numbers

Days

30

Starts on

Wednesday, September 1

Ends on

Thursday, September 30

Weekdays

22

Weekend days

8

Federal days off

1

US work days

21

Days of the year

244 to 273

How many of each weekday September 2027 has

Sun

Mon

Tue

Wed

Thu

Fri

Sat

4

4

4

5

5

4

4

The weekdays in blue come five times in September; the others come four times.

## September 2027 touches these ISO weeks.

ISO weeks of September 2027

ISO week

Monday to Sunday

Week 35

August 30 to September 5

Week 36

September 6 to September 12

Week 37

September 13 to September 19

Week 38

September 20 to September 26

Week 39

September 27 to October 3

## The rest of 2027 is one click away.

-   [August 2027](https://www.teampredict.ai/calendar/2027/august)
-   [October 2027](https://www.teampredict.ai/calendar/2027/october)

-   [2027 calendar](https://www.teampredict.ai/calendar/2027)
-   [Federal holidays 2027](https://www.teampredict.ai/holidays/2027)
-   [2027 payroll calendar](https://www.teampredict.ai/payroll-calendar/2027)

See every federal holiday of 2027 on the [federal holidays 2027](https://www.teampredict.ai/holidays/2027) page, or the pay dates that fall in September on the [2027 payroll calendar](https://www.teampredict.ai/payroll-calendar/2027).

## Here are answers to the questions people ask about September 2027.

What day does September 2027 start on?

September 2027 starts on Wednesday, September 1 and ends on Thursday, September 30.

How many weekdays and weekends are in September 2027?

September 2027 has 30 days: 22 weekdays and 8 weekend days. Wednesday and Thursday come five times.

Are there federal holidays in September 2027?

Yes: Labor Day (Monday, September 6). That leaves 21 US work days of the 22 weekdays.

What are the week numbers of September 2027?

September 2027 runs through ISO weeks 35 to 39. The ISO week starts on Monday, and the week that holds January 1 is the one with the year's first Thursday. Turn on Week numbers in the calendar to see them against each row.

Which days of the year are September 2027?

September 2027 is day 244 to day 273 of the year, which are Julian dates 244 to 273.

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