How Many Business Days in September 2025?

How Many Business Days in a Year
How many business days in

How many business days are in September 2025?

Answer

September 2025 has
21 business days

22 weekdays (Monday to Friday) minus 1 federal holiday observed on a weekday; the other 8 days are weekends. At 8 hours a day that is 168 working hours.

How the September 2025 count is made

Calendar days
30
Weekdays
22
Federal holidays
1
Business days
21
22 weekdays − 1 holiday = 21 business days
21 × 8 hours = 168 working hours

September 2025 calendar

September 2025: business days, weekends and federal holidays
SunMonTueWedThuFriSat
123456
78910111213
14151617181920
21222324252627
282930

red number — weekend or federal holiday, not a business daysolid red dot — federal holiday, on the day it is observed

Federal holidays in September 2025

The September 2025 count follows the federal calendar of 5 U.S.C. §6103: state holidays and local closures are not included. Business days between any two dates, with the same federal holidays, are counted by the days between dates calculator.

Related Calculations

See Also

  • Business Days From Today - Counts US federal business days: skips weekends and the 11 federal holidays on their observed dates
  • Days Between Two Dates - Calculate the Difference Between Two Dates. How many days, months, and years are between two dates? From date to date calculator

How Many Business Days in a Year

This calculator counts US federal business days — Monday to Friday, excluding the eleven federal holidays of 5 U.S.C. §6103 on the days they are observed — in any year or month from 1986 to 2100. For example, it can help you find out how many business days are in September 2025? (The answer is: 21 business days). Choose a month, or “Year” for the whole year, enter the year (e.g. 2025) and press “Find out”. Business day and working day mean the same here. Bank holidays and state holidays differ from the federal calendar, and the pages say where.
Recalculate with different values ↑

Business days by month

MonthBusiness daysFederal holidaysWorking hours
April 2025220176
May 2025211168
June 2025201160
July 2025221176
August 2025210168
September 2025211168
October 2025221176
November 2025182144
December 2025221176
January 2026202160
February 2026191152

FAQ

How many business days are in September 2025?

September 2025 has 21 business days

How many working hours are in September 2025?

168 working hours at 8 hours a day: 21 × 8 = 168. That is the full-time schedule of a 40-hour week; paid time off and overtime are not part of the count.

Is there a federal holiday in September 2025?

Yes. 1 federal holiday is observed in September 2025: Labor Day — Monday, September 1.

See Also