Day-by-day audit
Each row explains whether a date counted. Long ranges are summarized while preserving the full calculation internally.
| Date | Weekday | Status | Reason | Running count |
|---|
OneFreePlace · Tool #117
Business-day planning with an audit trail, not a mystery number.
Count workdays, calculate deadlines, build multiple milestones and generate recurring business-day schedules. Define any workweek, add public holidays, company closures and exceptional working days, then inspect exactly why each date counted or did not.
✓ Custom workweeks✓ Public + custom holidays
✓ Working-day overrides✓ CSV + ICS export
✓ Local date arithmetic
Business Days Calculator
Count · deadline · milestones · recurring
Range count
How many business days?
Business-date finder
Move by business days
Multiple deadlines
Build a deadline ladder
Comma-separated. Negative values create deadlines before the anchor, e.g. -10, 5, 20.
Recurring work schedule
Generate repeated business dates
Shared business calendar
These rules apply to every mode.
Holiday dataNot selected
Country holiday data is requested only when you select a country. Calculations themselves stay in your browser.
One ISO date per line. Add an optional name after |.
Highest priority: these dates count even if they are normally weekends or holidays.
Business days
Auditable calendar
—
business days
Choose your dates and calendar rules.
Calendar dates—considered in the range
Regular non-work days—outside the workweek
Holiday exclusions—public + custom closures
Working overrides—exception dates counted
Counting rule
Monday–Friday workweek. No automatic public holidays. Exceptional working dates override all exclusions.
Business day
Regular non-work day
Holiday / closure
Working override
Monthly breakdown—
Built for real schedules
A useful business-day result should make its assumptions visible and survive non-standard calendars.
Custom workweekMonday–Friday, Sunday–Thursday, six-day weeks or any custom combination.
Holiday-awareOptional national holiday data plus company closures and manually entered dates.
Working overridesMark an exceptional Saturday or holiday as working without rewriting the whole workweek.
Timezone-safe datesDate-only arithmetic uses calendar-day serials, so daylight-saving transitions do not shift a deadline.
ICS importImport all-day calendar dates as exclusions; recurring RRULE events are not expanded automatically.
Exportable auditDownload the computed schedule as CSV, or milestones and recurring dates as an ICS calendar.
Automatic holiday data, when selected, uses HolidayGrid (CC BY 4.0) where available and
EU Holidays Data (CC0) for supported European years.
National calendars do not cover every state, region, company closure or sector-specific rule; add custom exclusions/overrides when those matter.
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Business-day rules can have legal or contractual meaning.This tool performs calendar arithmetic from the rules you select. For statutory deadlines, banking cutoffs, court rules, employment rights or regulated notices, verify which holidays, regions, start/end-date conventions and exceptional working days actually apply.