OnSumoTools

US Working Days Calculator

Count business days between two dates, skipping weekends and US federal holidays.

Date range

Holidays

Working days

21

Calendar days in range

30

Weekends excluded

8

Holidays excluded

1

Working days

21

Holidays in range

  • 2026-11-26 Thanksgivingfederal

Per-week breakdown

WeekWorkingWeekendsHolidays
Week of 2026-11-08210
Week of 2026-11-15520
Week of 2026-11-22421
Week of 2026-11-29520
Week of 2026-12-06510

Add deadline to Google Calendar

Federal and state holiday rules can change. Confirm critical deadlines against your company calendar.

How does the Working Days Calculator US work step by step?

The tool iterates day-by-day through the selected range, applying three exclusion tests in sequence.

What does a typical Working Days Calculator US result look like?

Range: January 1, 2025 to January 31, 2025 (inclusive both ends) Total calendar days: 31 Weekend days: January 4-5, 11-12, 18-19, 25-26 = 8 days Federal holidays in range: January 1, 2025 (New Year's Day, Wednesday), excluded January 20, 2025 (MLK Day, 3rd Monday of January), excluded Total excluded: 8 weekends + 2 holidays = 10 days Working days: 31 - 10 = 21

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Frequently asked questions

  • Which federal holidays does this calculator exclude?

    All 11 US federal holidays: New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, and Christmas Day. Each is calculated using its official date rule and the observed date when the holiday falls on a weekend.

  • Does it handle observed holiday dates correctly?

    Yes. When a fixed-date holiday falls on Saturday, the observed federal holiday is the preceding Friday. When it falls on Sunday, the observed holiday is the following Monday. The calculator uses observed dates for the exclusion, not the calendar date of the holiday.

  • Why does my contract say 5 business days but the calendar shows 7?

    Business day calculations skip weekends and holidays, so a 5-business-day period can span 7-10 calendar days depending on when it starts and what holidays fall in the range. The tool shows exactly which days were excluded, giving you an audit trail for deadline disputes.

  • What about legal and court deadlines?

    State courts often observe additional local court holidays not in the federal calendar. Use the custom holiday field to add your state court's holiday schedule. For formal legal deadlines, always verify against the court's official calendar, this tool is a planning aid, not a substitute for professional legal advice.

  • What happens when two federal holidays fall in the same week?

    Both are excluded. The most common occurrence is Thanksgiving week, where Thanksgiving (fourth Thursday of November) and Christmas (December 25) occasionally interact with other December dates. Thanksgiving week alone removes one business day; if Christmas falls on a Friday that year, the week before also loses a day to the observed holiday. The tool lists each excluded holiday separately by name and date, so you can see precisely which holidays affect any given range rather than just seeing a reduced count without explanation.

  • Can I use this tool to verify if a specific date is a federal holiday?

    Yes. Set both the start and end date to the same calendar date. The output will show either 1 working day (if that date is a business day) or 0 working days with the excluded holiday listed by name (if it is a weekend or federal holiday). This is a quick way to confirm whether a specific date is a federal observed holiday before scheduling a deadline or appointment.

Business days in the US

A five business day deadline isn't always seven calendar days. Weekends drop out, and so do federal holidays. That mismatch causes missed shipping dates and confused contract terms.

Set a start and end date. The calculator removes Saturdays, Sundays and federal holidays through 2030, then shows the working days and a weekly breakdown.

Which holidays count

The federal list includes New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving and Christmas. Fixed-date holidays that land on a weekend are observed on a Friday or Monday, and the tool uses the observed date.

You can add state holidays and custom dates, like a company shutdown or a floating day off.

  • Federal observed dates follow the weekend shift rule
  • State days like Patriots' Day or Cesar Chavez Day are not included by default
  • Add them as custom dates when they apply to you

Legal and court deadlines

Courts and agencies have their own counting rules. Some exclude weekends and holidays, others count every calendar day and roll a deadline forward only if it lands on a closed day. Check the exact rule for your situation, or ask a lawyer.

This calculator suits planning, shipping, payroll and project timelines.

A few tips

Work out whether your start day counts. Check banks and postal services, since their closing days can differ slightly from federal ones. Allow extra time around holiday weeks.

Your dates stay in your browser.

A worked example

You file a request on Wednesday, November 19 and the agency has 10 business days to answer. Count Thursday as day one, skip the weekend, and Thanksgiving falls on the fourth Thursday. The answer lands the following week or later, not on December 3. A plain calendar count misses the holiday.

Enter the start date, enter the number, pick the year and read the result. If your employer closes the day after Thanksgiving, add it as a custom date.

Do the same in reverse to find a start date for a hard deadline.

Federal versus state versus company

The federal list has eleven holidays, but states add their own. Some mark Cesar Chavez Day, Patriots' Day or Juneteenth in different ways. Banks follow the Federal Reserve schedule, which is not identical to the government's.

Courts also differ. Many state courts follow their own rules on how to count days and what to do when a deadline falls on a weekend. Read the local rule before trusting any tool, including this one.

When in doubt, file a day early. It costs nothing.

Business days in contracts

Payment terms often say net 30, which is calendar days, or 10 business days, which isn't. The two can differ by a week. Check the wording and use the matching count.

Shipping carriers quote 'business days' with their own cut-off times, often 2 or 3 in the afternoon. Order at 4 pm on a Friday and day one may start Monday. The calculator can't know a carrier's cut-off, so add a day if the timing is tight.