Working Days Calculator
Count business days (Monday to Friday) between two dates — with optional federal or state holiday exclusion.
From 2026-01-05 to 2026-01-30 (inclusive) there are 20 working days — 6 weekend days, out of 26 total.
Results update as you type. Both endpoints are included in the count: Mon to Fri (same week) is 5 working days, not 4. Weekend = Saturday + Sunday; if your jurisdiction treats Friday + Saturday as the weekend, the count needs adjusting.
Formula
The calculator iterates each day in the inclusive range, counts weekdays (Mon–Fri), skips Saturday and Sunday, and subtracts any holiday dates you've listed. Both endpoints are counted: Mon to Fri (same week) is 5 working days, not 4. Weekend "holidays" are ignored — they're already excluded as weekend days.
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Frequently asked questions
Are both endpoints included?▾
Yes — Mon to Fri (same week) is 5 working days, both inclusive. The Days Between Dates Calculator uses the exclusive convention (Mon to Fri = 4 days); if you need that count, use that calculator instead or subtract 1.
Should I include federal holidays?▾
It's optional — paste them into the holidays box. There are 11 federal holidays per year (New Year's Day, MLK Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, Christmas). State holidays vary; some employers grant additional days off, others don't recognise all federal holidays.
What's the standard US working week?▾
Monday to Friday in most office work. Retail, hospitality, healthcare, manufacturing, and many service industries operate on different schedules. The Mon–Fri convention is the federal default (FLSA, court rules, government holidays) but doesn't capture every working schedule.
Are SCOTUS or court-rule deadlines counted differently?▾
Federal court rules (FRCP for civil, FRCrP for criminal) have specific definitions of 'business day' that exclude federal holidays and shift weekend deadlines forward. State courts have their own rules. For binding legal deadline calculations, defer to the relevant rule or attorney; this calculator gives the conventional Mon–Fri count plus your specified holidays.
Why are weekend 'holidays' ignored?▾
If you paste 4 July and it falls on a Saturday, the calculator doesn't count it twice — Saturday is already a weekend day. Some federal holidays observe an 'observed' Friday or Monday when the actual date falls on a weekend; if your context cares about that, paste the observed date instead.
Can I use this for PTO planning?▾
Yes — count working days between two dates, paste any company holidays into the holidays box, and the result is the working days you'd be using PTO for. Some companies count PTO in business days, some in calendar days; check your handbook.