US Working Days Calculator
Count business days between two dates in a way that actually matches how many teams work: Monday to Friday by default, with an optional switch to remove observed U.S. federal holidays and a field to subtract your own company closures, shutdowns, or custom non-working days.
Calculate working days between dates
Enter a start date and end date to see the working-day count.
Observed U.S. federal holidays in your range
- Federal holidays are not currently being excluded. Turn the option on above to remove them automatically.
Informational estimate only. “Working day” can mean different things in real workplaces because company holiday schedules, state holidays, compressed workweeks, and union or public-sector rules do not always match the standard federal calendar.
Quick answer: This calculator counts Monday-to-Friday working days between two dates, includes both dates by default, and can optionally subtract observed U.S. federal holidays plus any extra company closure days you enter.
Written by Ruby Miller · HR & Employment Law Content Lead
How this working-days calculator works
This tool starts with a very practical definition of a working day: a weekday from Monday to Friday. It then lets you choose whether to stop there or make the count closer to a real office calendar by removing observed U.S. federal holidays and any extra non-working days that matter in your workplace, such as company shutdowns, floating holidays, weather closures, training days, or team events.
That distinction matters. A raw weekday count is useful when you want a simple planning number. A holiday-adjusted count is more useful when you are estimating payroll cycles, staffing coverage, onboarding timelines, employee notice periods, service-level commitments, or project deadlines that depend on actual business days rather than calendar days.
What this calculator counts
- Weekdays between two dates
- Optional removal of observed U.S. federal holidays
- Optional manual subtraction for your own extra non-working days
- Inclusive start/end counting by default
If you are trying to calculate leave entitlements under a law such as FMLA, this is not the right tool by itself. FMLA runs on calendar weeks, not weekday counts. If you are trying to estimate accrued PTO hours, use the PTO Accrual Calculator first, then use this one only if your next question is about business-day spacing or scheduling.
When to exclude federal holidays—and when not to
The optional federal-holiday switch is helpful, but it should not be turned on blindly. The federal government observes 11 holidays for its own employees, and many private employers follow some or all of them. But not every employer follows the federal calendar, and some workplaces observe fewer holidays, substitute different holidays, or add state-specific days that are not on the federal list.
That is why this calculator keeps the holiday exclusion optional instead of forcing one fixed answer. You can start with the raw weekday count, then turn on federal holidays if that matches your situation, and finally subtract any extra company-specific days manually.
| Mode | Best for | What is removed automatically |
|---|---|---|
| Weekdays only | Quick planning, generic business-day counting | Saturdays and Sundays |
| Weekdays + federal holidays | Federal calendars, many standard office schedules | Weekends plus observed U.S. federal holidays |
| Weekdays + federal holidays + custom closures | Internal planning that should match your employer’s actual schedule | Weekends, observed U.S. federal holidays, and any extra days you subtract |
Observed U.S. federal holidays this calculator can remove
When the federal-holiday option is enabled, the calculator removes observed weekday holidays using the standard U.S. federal list: New Year’s Day, Martin Luther King Jr. Day, Washington’s Birthday, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and Christmas Day. Holidays that fall on a weekend are treated using the standard federal observance pattern, which typically moves the observance to the nearest weekday.
That gives you a reliable federal-calendar adjustment, but it is still not the same thing as your employer’s exact closure schedule. Some employers observe the actual holiday date only; some close on both the holiday and an adjacent day; and some do not close at all.
Worked examples
Use cases this page is built for
- Estimating business days between onboarding, resignation, or project milestone dates
- Checking notice periods in working days rather than calendar days
- Planning payroll processing windows, invoice due dates, and turnaround targets
- Counting office working days in a month, quarter, or custom date range
- Cross-checking staffing coverage during holiday periods
It is also useful for HR and operations teams that need a neutral starting count before layering in employer-specific rules. In that sense, the calculator is both a quick answer tool and a workflow tool: it gives you the raw count and also shows the breakdown so you can explain where the number came from.
Common mistakes to avoid
- ✕Assuming “business days” always means the same thing. Some teams mean weekdays only; others mean weekdays minus company holidays; others use rotating schedules or compressed weeks.
- ✕Forgetting the end-date rule. Some people count both dates; others stop the day before the deadline. This tool lets you control that explicitly.
- ✕Treating the federal holiday list as universal. Many private employers do not observe all federal holidays, and some add non-federal closure days instead.
- ✕Using a weekday count to measure FMLA or other statutory leave durations. Those leave periods often run on calendar-based rules, not simple working-day math.
FAQs
Does this calculator exclude weekends automatically?
Yes. Saturdays and Sundays are excluded automatically, which is why the default output is a weekday-based working-day count.
Does it exclude U.S. federal holidays automatically?
Only if you turn on the federal-holiday option. It is optional because many private employers do not observe the full federal holiday calendar.
Are both dates included?
Yes, by default. If you uncheck “Include the end date,” the calculator will stop counting the day before the end date.
What if my employer gives the day after Thanksgiving off?
Turn on the federal-holiday option and then subtract 1 extra custom non-working day for the additional closure.
Can I use this for all 50 states?
Yes. The weekday math works nationally. The optional holiday list is the federal list, which is a useful baseline across the U.S., but your state or employer may observe additional days.
What if my company works Tuesday to Saturday?
This tool is built for the standard Monday-to-Friday pattern. If your workweek is different, use the result as a rough baseline rather than a final operational count.
Can this replace a project calendar or HRIS schedule?
No. It is best used as a fast estimate and explanation tool. Your final working-day count should still reflect your employer’s real closure calendar and schedule rules.
Does this tool create extra URL parameters when I change dates?
No. The calculator keeps a clean page URL, so your selected dates are not written into the address bar.