How much work can your team actually complete this quarter? How many billable hours are available in April? What's the realistic delivery date if you commit to 45 working days of effort? Every answer starts with a simple question: how many working days are in the period?
The quick answers
Assuming a Monday–Friday work week and accounting for US federal holidays:
- Working days per year: 250–253 (varies by year and weekday placement of holidays)
- Working days per quarter: 60–65 (depends on which quarter and holidays)
- Working days per month: 19–23 (February can dip lower)
- Working days per week: 5 (minus holidays that week)
Why the numbers vary
Three factors cause the variation:
- Number of weekends in the month. February with 28 days has exactly 4 weekends. Months with 31 days can have 4 or 5 weekends depending on the starting day.
- Holidays. If Independence Day falls on a Saturday, you lose the Friday (observed). If on Sunday, you lose the Monday. If on a weekend, the "cost" to the work week is still one day, but the specific date shifts.
- Leap years. One extra calendar day = potentially one extra working day or one extra weekend day, depending on whether Feb 29 is a Monday–Friday.
Monthly working days for 2026
Assuming US federal holidays are observed (a typical corporate calendar):
- January: 21 (New Year's Day + MLK Day)
- February: 19 (Presidents' Day)
- March: 22
- April: 22
- May: 20 (Memorial Day)
- June: 21 (Juneteenth)
- July: 22 (Independence Day)
- August: 21
- September: 21 (Labor Day)
- October: 21 (Columbus Day, if observed)
- November: 19 (Veterans Day + Thanksgiving)
- December: 22 (Christmas Day)
Totals vary based on which holidays your company observes. Many tech companies don't observe Columbus Day or Veterans Day; retail often requires work on most "observed" holidays.
Quarterly totals
For 2026 (standard federal holidays):
- Q1 (Jan–Mar): ~62 working days
- Q2 (Apr–Jun): ~63 working days
- Q3 (Jul–Sep): ~64 working days
- Q4 (Oct–Dec): ~62 working days
Q3 tends to have the most working days despite summer vacations because no major holidays fall between Labor Day and Thanksgiving's off weeks. Q1 has Christmas/New Year clustering that can trim it further if your company closes between the holidays.
Use cases for exact counts
Financial forecasting: "Monthly revenue" divided by working days gives a daily run rate. Revenue per working day is a cleaner metric than revenue per calendar day because it isolates the "more or fewer working days" effect. A February with 19 working days will naturally see less revenue than a March with 22 — that's calendar, not performance.
Capacity planning: If your team has 8 engineers, each working 7.5 productive hours per day, a 22-working-day month gives you 8 × 7.5 × 22 = 1,320 engineer-hours. A 19-working-day month gives 1,140 — a 14% reduction. Plan accordingly.
Payroll and time sheets: Salaried employees earn the same regardless, but hourly workers' paychecks vary with working days in the period. Accrued vacation and sick time typically count business days too.
SLA calculations: "48 business hours response" is 6 working days if the clock only ticks during business hours. Missing this distinction creates unintentional SLA violations.
Custom holidays and calendars
Not every business follows federal holidays. Retail operates through most of them. Government offices may observe state-specific days. Schools have entirely different calendars. Medical facilities operate 24/7. When planning, use the calendar that applies to your specific operation.
International teams complicate things further. A US–UK team has different holidays. A US–Japan team faces weekends offset by timezone plus entirely different public holiday schedules.
Half-days and partial days
Many firms close early Christmas Eve, New Year's Eve, or Thanksgiving Eve. If a half-day counts as 0.5 working days, annual totals adjust. Document your company's policy clearly for budgeting accuracy.
Remote and flex schedules
With remote and 4-day work weeks gaining popularity, the "working day" concept varies even within one company. Results-based tracking sidesteps the question. But for legal and payroll purposes, the traditional 5-day / 8-hour day is still the default.
Compute it precisely
Our working days calculator counts business days between any two dates, automatically excluding weekends and US federal holidays. Use it to plan project timelines, validate contract deadlines, forecast revenue, or set realistic expectations. Knowing your working-day count is one of those unglamorous skills that separates seasoned planners from everyone else.