Business Day & Deadline Calculators

Business days between two dates

Direct answer

A business-day count is reproducible only when endpoint inclusion, weekends, and the holiday calendar are stated.

general calculationBusiness Days Calculatorbusiness days
Region
Example uses the U.S. federal calendar; companies, courts, banks, and countries can define business day differently.
Best calculator
Business Days Calculator
Reviewed
2026-07-14

Reproducible workflow

Method, inputs, and worked result

Method

  1. 1Confirm date order and timezone.
  2. 2State whether each endpoint counts.
  3. 3Remove configured weekends and governing closures.

Inputs used

  • November 23-30, 2026 range
  • Start excluded and end included
  • Saturday/Sunday plus U.S. federal holidays

Worked example

Count after November 23 through November 30, 2026.

  1. 1.Candidate weekdays are November 24, 25, 26, 27, and 30.
  2. 2.Remove Thanksgiving, November 26.
  3. 3.Retain November 24, 25, 27, and 30.

4 business days; including the start would produce 5.

Reproduce: Enter both dates, exclude start/include end, and select federal holidays.

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Open Business Days Calculator
Scenario: Business days between two dates
Direct answer: A business-day count is reproducible only when endpoint inclusion, weekends, and the holiday calendar are stated.
Region: Example uses the U.S. federal calendar; companies, courts, banks, and countries can define business day differently.
Inputs: November 23-30, 2026 range; Start excluded and end included; Saturday/Sunday plus U.S. federal holidays
Method: Confirm date order and timezone. State whether each endpoint counts. Remove configured weekends and governing closures.
Example result: 4 business days; including the start would produce 5.
Reproduce: Enter both dates, exclude start/include end, and select federal holidays.
Boundary: Use the definition in the governing document rather than assuming a universal calendar.
Next step: open Business Days Calculator from Business Day & Deadline Calculators.

Common use cases

invoice period count

office capacity check

project window estimate

What can change the result

Including start

Company closes November 27

Saturday is working

Mistakes to avoid

  • Omitting endpoint rule
  • Mixing worldwide holidays
  • Labeling elapsed days business days

Questions to explore next

  • Should the first morning count?
  • What if Friday is also closed?
  • Can I use a six-day workweek?