Count Business Days in Any Period
How many working days are in a specific month, quarter, or custom date range?
Typical business day counts (US, 2026)
| Period | Business days | Weekend days | Holidays |
|---|---|---|---|
| January | 21 | 10 | 1 (New Year's Day) |
| February | 19 | 8 | 1 (Presidents' Day) |
| March | 22 | 9 | 0 |
| Q1 total | 62 | 27 | 2 |
| Full year | ~261 | 104 | 11 |
Common use cases for counting business days
- Payroll: determine how many working days are in a pay period.
- Project estimation: how many working days are available for a sprint or phase.
- Billing: calculate daily-rate billing for a contract period.
- Leave planning: how many working days will you be away?
- Compliance: verify statutory notice periods and filing deadlines.
How to Count Business Days Accurately
Counting business days requires more than just excluding weekends. You also need to account for public holidays, which vary by country and sometimes by state or province. Our business day counter handles this automatically — just enter your start date and the number of days to add or subtract.
The counting method matters: some contracts count the start day as day 1, while others begin counting on the following day. Our calculator follows the most common convention, which excludes the start date and begins counting on the next business day. If your contract specifies "including the day of," simply add one day to your result.
Business Day Counting in Different Contexts
Different industries use business day counting differently:
- Banking: ACH transfers typically take 1-3 business days. Wire transfers may settle same-day if initiated before the cutoff time.
- Shipping: "3-5 business days" means 3-5 working days, not calendar days. A package shipped on Friday with 3-day delivery arrives on Wednesday.
- Legal deadlines: Courts often count business days for filing deadlines, but rules vary by jurisdiction. Always verify the applicable rules.
- Real estate: Earnest money deposits, inspection periods, and closing dates are typically measured in business days.
Tips for Accurate Business Day Calculation
When calculating business days manually, keep these tips in mind: always verify the holiday calendar for the relevant country, check whether the start date is inclusive or exclusive, and account for observed holidays when a holiday falls on a weekend. Using an automated calculator like ours eliminates these common sources of error.