Business Day Calculator

Working days under your rules. Includes both dates. Uses only your selected weekdays and date overrides; no official holiday calendar is loaded.

Start using

Includes both dates. Uses only your selected weekdays and date overrides; no official holiday calendar is loaded.

2026-01-01 → 2026-01-07
Saturday + Sunday
− 2026-01-01
+ 2026-01-03
7 → 5

0001-01-01 ≤ date ≤ 9999-12-31
1 ≤ interval ≤ 1000000
YYYY-MM-DD
≤ 5000 × 2

Processing takes place locally in your browser.

Working days under your rules. Includes both dates. Uses only your selected weekdays and date overrides; no official holiday calendar is loaded.

Choose Start date and End date. Both initially show the browser’s current calendar date. Try 7 March 2026 (2026-03-07) through 9 March 2026 (2026-03-09). The date picker’s visible format depends on the browser.
Click Query or calculate. The example returns 3 calendar days and 1 weekday. Both endpoints count; reversed dates are automatically put in chronological order. Run the query again after editing either date.
Use Copy all to copy the complete result. Clear removes the result and keeps both selected dates.

0001-01-01 ≤ date ≤ 9999-12-31
1 ≤ interval ≤ 1000000
YYYY-MM-DD
≤ 5000 × 2