Working Days Counter
Last reviewed: May 2026
Accurately counting business days is essential for contract deadlines, shipping estimates, project timelines, and legal proceedings.[1] This calculator excludes weekends and all U.S. federal holidays, giving you a precise count of working days between any two dates. For general date math, use the Date Difference Calculator.
| Month | Business Days | Holidays |
|---|---|---|
| January | 21 | New Year's, MLK Day |
| February | 19 | Presidents' Day |
| March | 22 | None |
| April | 22 | None |
| May | 20 | Memorial Day |
| June | 21 | Juneteenth |
| July | 22 | Independence Day (Sat→Fri) |
| September | 21 | Labor Day |
| November | 19 | Veterans Day, Thanksgiving |
| December | 22 | Christmas |
Business days — Monday through Friday, excluding public holidays — are the standard unit for deadlines in legal, financial, shipping, and professional contexts. A "5 business day" processing time means exactly 5 weekdays, potentially spanning 7–9 calendar days when weekends fall within the range. Understanding the distinction prevents missed deadlines: a contract signed on Wednesday with a 10 business day response period expires the following Wednesday two weeks later (not the Saturday 10 calendar days out). Banks, courts, government agencies, and most B2B transactions operate on business day schedules, making accurate counting essential for compliance, planning, and cash flow management.
| Holiday | Date | Business Impact |
|---|---|---|
| New Year's Day | January 1 | Banks, markets, government closed |
| Martin Luther King Jr. Day | 3rd Monday of January | Banks, government closed; many businesses open |
| Presidents' Day | 3rd Monday of February | Banks, government closed |
| Memorial Day | Last Monday of May | All sectors closed |
| Juneteenth | June 19 | Federal holiday since 2021 |
| Independence Day | July 4 | All sectors closed |
| Labor Day | 1st Monday of September | All sectors closed |
| Columbus Day | 2nd Monday of October | Banks, government closed; many businesses open |
| Veterans Day | November 11 | Banks, government closed |
| Thanksgiving Day | 4th Thursday of November | All sectors closed |
| Christmas Day | December 25 | All sectors closed |
Not all holidays affect all industries equally. Stock markets close on all 11 federal holidays plus Good Friday. Banks observe all federal holidays. Many private businesses close only for the major holidays (New Year's, Memorial Day, July 4th, Labor Day, Thanksgiving, Christmas) and remain open on observance holidays like Columbus Day and Veterans Day. When calculating business days for a specific context, confirm which holidays your counterparty observes.
Legal deadlines specified in "business days" follow jurisdiction-specific rules. In federal court, Federal Rules of Civil Procedure exclude weekends and federal holidays for deadlines under 11 days but include them for longer periods. State courts may have different rules. Contract language like "within 5 business days of receipt" creates an enforceable deadline that requires precise counting — disputes over deadline compliance can have significant financial and legal consequences. The safe practice is to count conservatively (exclude any day you are uncertain about) and aim to complete actions before the deadline rather than on the last possible day. For international contracts, specify whose business days apply — a holiday in one country but not another can create ambiguity.
Financial transactions settle on business day schedules. Stock trades settle T+1 (one business day after the trade date). Wire transfers typically process same business day if submitted before cutoff (usually 4–5 PM ET). ACH transfers take 1–3 business days. Check deposits may have 1–2 business day holds for funds availability, with longer holds for large amounts or new accounts. Mortgage closings are scheduled on business days because the recording office must be open to file documents. Understanding these settlement periods helps with cash flow planning — transferring money on a Friday means it may not arrive until Monday or Tuesday, and a transfer initiated before a long holiday weekend could take 4–5 calendar days. Our Date Difference Calculator handles calendar day counting for comparison.
Shipping carriers define "business days" differently for transit time versus delivery service. Standard ground shipping quoted as "5–7 business days" means 5–7 weekdays of transit, plus the processing day, potentially spanning 9–11 calendar days. Expedited options like "2-day" shipping from major retailers often means 2 business days of transit after processing — an order placed Thursday evening may not ship until Friday, with delivery on Tuesday (2 business days of transit, skipping the weekend). Same-day and next-day delivery services are calendar-based rather than business-day-based in most cases. International shipping adds customs processing time, which operates on the business day schedule of each country involved — a shipment crossing time zones and holiday calendars can experience compounding delays. Always verify whether quoted delivery times are business days or calendar days before making time-sensitive orders.
| Month | Typical Business Days | With Federal Holidays | Notes |
|---|---|---|---|
| January | 21–23 | 20–22 | New Year's + MLK Day |
| February | 20 | 19 | Presidents' Day |
| March | 22–23 | 22–23 | No federal holidays |
| April | 21–22 | 21–22 | No federal holidays (Good Friday for markets) |
| May | 22–23 | 21–22 | Memorial Day |
| June | 21–22 | 20–21 | Juneteenth |
| July | 21–23 | 20–22 | Independence Day |
| November | 21–22 | 19–20 | Veterans Day + Thanksgiving |
| December | 22–23 | 21–22 | Christmas Day |
A standard year contains approximately 252 business days (365 minus 104 weekend days minus ~9 observed holidays). This figure is essential for financial calculations — daily interest accrual on business-day basis, annualizing daily returns, and calculating prorated salaries. Some industries use a 360-day convention (12 months of 30 days each) for simplified interest calculations, while others use the exact 365/366-day count. Knowing the business day count for each month helps with project planning, payroll processing, and deadline management across multi-month timelines.
Business day calculations become complex for international operations because holiday calendars differ by country. The US has 11 federal holidays, the UK has 8 bank holidays, Japan has 16 national holidays, and China observes 7 official holidays but shifts weekend days to create extended breaks (Golden Week). Some countries observe Friday-Saturday weekends (much of the Middle East) rather than Saturday-Sunday. Islamic holidays follow a lunar calendar, shifting by approximately 11 days each year relative to the Gregorian calendar. Multinational companies typically maintain holiday calendars for each country of operation and use software to calculate business days across jurisdictions. When scheduling international deliverables or meetings, always specify the reference calendar — "5 business days per New York calendar" eliminates ambiguity.
Project managers use business day calculations to build realistic timelines. A project with 45 business days of work spans roughly 9 calendar weeks in a typical month, but can stretch to 10–11 weeks if the timeline crosses major holidays like Thanksgiving through New Year's. Buffer planning should account for holiday clusters: November through January contains 4–5 federal holidays, effectively reducing available business days by 8–10%. Critical path analysis requires converting all task durations to business days to prevent the common error of underestimating timelines that cross weekends and holidays. Tools like Microsoft Project and Jira support business day calendars natively, but for quick calculations, this calculator provides instant conversion between calendar days and business days.
While business days count 24-hour periods, many deadlines and service level agreements (SLAs) operate on business hours — typically 9 AM to 5 PM (8 hours per business day). A "24 business hour" response time equals 3 business days, not 1 calendar day. IT support contracts often specify response times in business hours: a 4-business-hour response SLA means the provider must respond within half a business day. If a support ticket is filed at 4 PM on Friday, the 4-hour clock does not start running over the weekend — the response is due by 12 PM Monday (8 AM Monday start + 4 hours). This distinction between business days and business hours is a frequent source of customer frustration and contractual disputes, making clear SLA definitions essential for any service agreement. Use our Time Card Calculator for tracking actual hours worked within business day frameworks.
→ Start counting the day after. Day 1 is the next business day, not the date itself.[1]
→ Check for observed holidays. Weekend holidays shift to the nearest weekday.
→ Plan for end-of-month clustering. Many deadlines fall on the 1st and 15th, creating bottlenecks.
→ For project planning. Use the Countdown Timer to track remaining time visually.
See also: Date Difference · Countdown Timer · Time Card · Age Calculator