Business days
Count working days using your chosen weekdays and excluded dates. Change the inputs to update the chart or diagram.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
How it works
- Σ (d ∈ ) − |set()|
- Worked example: 2026-10-05 → 2026-10-11; 1,2,3,4,5 ⇒ 5; −2026-10-06 ⇒ 4
- Supported input limits: : n ≤ 20; : n ≤ 550
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
Choose weekdays using 0 for Sunday through 6 for Saturday. Only your excluded dates are removed; holidays are not loaded automatically. Reversing the dates gives a negative working-day count.
Sources
- MDN — Intl date/time and time-zone formatting Sources reviewed: 2026-10-06
