Business Day Calculator

Calculate working days accurately by excluding weekends and federal holidays.

Result

Tuesday, January 12, 2027

is 90 business days from Sep 1, 2026

Visual Timeline

01 Tue

02 Wed

03 Thu

04 Fri

05 Sat

06 Sun

07 Mon H

08 Tue

09 Wed

10 Thu

11 Fri

12 Sat

13 Sun

14 Mon

15 Tue

16 Wed

17 Thu

18 Fri

19 Sat

20 Sun

21 Mon

22 Tue

23 Wed

24 Thu

25 Fri

26 Sat

27 Sun

28 Mon

29 Tue

30 Wed

01 Thu

02 Fri

03 Sat

04 Sun

05 Mon

06 Tue

07 Wed

08 Thu

09 Fri

10 Sat

11 Sun

12 Mon H

13 Tue

14 Wed

15 Thu

16 Fri

17 Sat

18 Sun

19 Mon

20 Tue

21 Wed

22 Thu

23 Fri

24 Sat

25 Sun

26 Mon

27 Tue

28 Wed

29 Thu

30 Fri

31 Sat

01 Sun

02 Mon

03 Tue

04 Wed

05 Thu

06 Fri

07 Sat

08 Sun

09 Mon

10 Tue

11 Wed H

12 Thu

13 Fri

14 Sat

15 Sun

16 Mon

17 Tue

18 Wed

19 Thu

20 Fri

21 Sat

22 Sun

23 Mon

24 Tue

25 Wed

26 Thu H

27 Fri

28 Sat

29 Sun

30 Mon

01 Tue

02 Wed

03 Thu

04 Fri

05 Sat

06 Sun

07 Mon

08 Tue

09 Wed

10 Thu

11 Fri

12 Sat

13 Sun

14 Mon

15 Tue

16 Wed

17 Thu

18 Fri

19 Sat

20 Sun

21 Mon

22 Tue

23 Wed

24 Thu

25 Fri H

26 Sat

27 Sun

28 Mon

29 Tue

30 Wed

31 Thu

01 Fri

02 Sat

03 Sun

04 Mon

05 Tue

06 Wed

07 Thu

08 Fri

09 Sat

10 Sun

11 Mon

12 Tue

Work Day Weekend Holiday

Why use a Business Day Calculator?

Calculating deadlines and project timelines requires more than just counting days on a calendar. Standard calendar days often include weekends and public holidays, which can lead to missed deadlines and poor planning.

Our Business Day Calculator helps professional planning by:

Excluding Saturdays and Sundays automatically.
Skipping US Federal Holidays (like New Year's Day, Independence Day, Thanksgiving).
Providing accurate dates for contract clauses (e.g., "within 10 business days").
Visualizing the timeline to see exactly which days are counted.

Popular Calculations

Jump start your calculation with these popular presets:

+5 Business Days +10 Business Days +15 Business Days +20 Business Days +30 Business Days +45 Business Days +60 Business Days +90 Business Days

Frequently Asked Questions

What are business days?

Business days (also called working days) are weekdays when most businesses operate. In the US, this typically means Monday through Friday, excluding federal holidays.

How many business days are in a week?

There are typically 5 business days in a week (Monday through Friday). However, if a federal holiday falls on a weekday, that week will have only 4 business days.

How many business days are in a month?

On average, there are about 20-22 business days in a month. The exact number depends on how weekends and holidays fall within that specific month.

Which holidays does this calculator exclude?

This calculator excludes all 11 US federal holidays: New Year's Day, MLK Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, and Christmas.

What does "within 10 business days" mean?

When a deadline is quoted as "within 10 business days," it means 10 working days from the start date, not including weekends or holidays. Use our calculator above to find the exact date.