NerdBible
Sign in

Tools

More
All toolsAudioCalculatorsColour & CSSDeveloperEverydayHardware TestsImagePDF & DocumentsSecurity & PrivacyTextWeb & Marketing
More
ConcreteDatesGravel & soilPercentPower costPower runtimeRenewalsSolar sizeSquare feetSubscriptionsTilesTime zonesTip splitUnit priceUnits

Business Days Calculator

Pick a start and end date, tick the days you do not work and list any holidays, and the number of business days appears at once.

Free tools that run in your browser. Nothing you type, open or create is uploaded to NerdBible or anyone else.

Dates are counted as whole calendar days, so daylight saving changes do not shift the results. When adding months lands on a day the month does not have, such as 31 February, the result is the last day of that month.

How to use it

  1. Choose a tab: Age, Days between, Business days, Add or subtract, Hours or Time card.
  2. Enter the dates. For business days, tick the days you do not work, type any public holidays to skip, and use the second box to add working days to a date.
  3. For times, use Hours to find the time between two clock times, move a clock time forward or back, or add up a list of hours and minutes.
  4. On the Time card, enter each day's start, finish and break. The week's total appears below; add your hourly rate if you want a gross pay figure.
  5. Read the result straight away; press Copy next to any figure you want to keep.

Questions

Does the business days calculator include public holidays?

Only the ones you list. Type each holiday date on its own line and it is skipped; nothing is assumed for any country.

Is the start date counted?

You choose. Tick or untick Count the start date and Count the end date to match the rule you are working to.

How do I find a date 10 business days from today?

Set the start date, then use Add working days with 10. The result skips your days off and any holidays you listed.

This page opens the Date Calculator: Age, Days Between & Business Days already set up for this job. Every other option is in the full tool.

About this tool

Counting working days

Business days are the days you actually work. By default that means Monday to Friday, but you choose: tick Saturday only, or a Friday and Saturday weekend, or any other pattern.

  • Holidays. Type the dates to skip, one per line, such as 2026-12-25. The calculator does not assume any country's public holidays, so you stay in control of what counts.
  • Start and end dates. Choose whether each one is included. Notice periods and delivery times are often counted from the day after.
  • Add working days. The second box moves a date forward or back by a number of business days, such as 10 working days from an order date, skipping the same weekends and holidays.

Check the rules that apply to you

Contracts, courts, payroll and shipping companies each define a business day in their own way, and some count from the next working day. Use the result as a careful count, and check the exact rule in the document that sets your deadline.

Dates are counted as whole calendar days, so clock changes never shift the result.

Related tools