How are business days counted between two dates?

The calculator counts Monday–Friday calendar dates, then removes the chosen holiday dates. It includes the earlier date and either includes or excludes the later date according to the toggle. Reversed dates are reordered; the end toggle still applies to the later date. The breakdown shows calendar, weekend and holiday totals, with each excluded holiday named. No local clock or daylight-saving transition changes the calendar count.

How do I add 10, 30, 45, 60 or 90 business days?

Choose Add days, supply a start date and enter a whole number such as 10, 30, 45, 60 or 90. Positive counts move forward, negative counts move backward, and neither includes the start date. Weekends and the chosen holiday calendar are skipped. A zero count returns the starting date even if it is a weekend or holiday. Valid thousands grouping such as 1,000 is accepted; a range such as 7–10 needs two separate calculations.

How long are two or 21 business days?

It depends on the start date and the holiday calendar. With weekends only, two business days after Friday 13 March 2026 is Tuesday 17 March. Two business days after Monday 9 March is Wednesday 11 March. Enter your own start date and 2 or 21 in Add days to obtain the actual calendar date. A supplied business-day interval does not predict a carrier delivery or service deadline.

Which US holidays are included?

The model uses recurring federal holidays for a Monday–Friday schedule: New Year’s Day, Martin Luther King Jr. Day, Washington’s Birthday (often called Presidents’ Day), Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving and Christmas. It retains historical start-year rules for MLK and Juneteenth. It excludes state, local, regional Inauguration Day, company and one-off office closures. The observed dates are checked against OPM schedules for 2024–2030; other years are rule projections.

Does UK mean every UK holiday calendar?

The UK control selects England and Wales only. It includes Good Friday, Easter Monday, bank holidays and recorded one-off exceptions such as the 2022 Jubilee and funeral and the 2023 coronation. Scotland and Northern Ireland have different calendars and are not included. The dates are checked against the saved GOV.UK schedules for 2019–2028; older and later calculations are projections, not a complete closure history or a prediction of future announcements.

How are substitute holidays handled?

For the modelled US Monday–Friday schedule, a Saturday holiday moves to Friday and a Sunday holiday to Monday. New Year’s Day can therefore be observed on the previous 31 December. England and Wales use the next available weekday; Christmas and Boxing Day substitutes retain their correct names when both need moving. The holiday list names each substitute and its original date.

How do business days compare with calendar days and weeks?

Calendar days include every counted date. Business days remove weekends and the selected holidays, so a conversion needs actual dates. Five business days equal one five-day workweek only when no holiday is removed: 40, 75 and 90 business days equal 8, 15 and 18 such workweeks. These are workweek equivalents, not elapsed calendar weeks. Hours cannot be converted to business days without specifying the working hours per day, which this tool does not model.

Can I calculate shipping, lead time or a deadline?

You can add a business-day interval you already know to a supplied date. The tool does not know carrier transit estimates, order cutoffs, regional service calendars, legal counting rules or USCIS schedules. For a range such as 2–3 business days, calculate 2 and 3 separately from the same date; there is no combined range input. For business days until a holiday, supply its actual date in Between dates; no named-holiday lookup is built in.

Does it support Excel or other countries’ holidays?

This is a browser calculator; it does not generate Excel formulas or operate a workbook. The rendered calendars are weekends only, recurring US federal holidays, and England and Wales bank holidays. Canadian, Australian, Indian and other national or provincial calendars, custom weekend patterns and company days off are not selectable here.

Are my dates saved or sent anywhere?

The calculation runs in your browser. Restoration does not rewrite saved data. Valid deliberate edits are saved locally and preserve other fields in a usable saved entry; invalid drafts keep the previous saved calculation. An unusable saved entry is kept until you choose Forget saved calculation. Clipboard refusal leaves a complete selectable summary for manual copying.

Business Days Calculator

Count Monday–Friday working days between two calendar dates, or add and subtract a supplied number of business days. Choose weekends only, recurring US federal holidays or England and Wales bank holidays, and inspect every holiday the calculation excluded. The count includes the earlier date; you choose whether to include the later date. Add days excludes the starting date.

Working daysReadyPick a start date and an end date.

Mode

From

To

Holidays

Include end date

United States. Recurring federal holidays for a Monday–Friday schedule; excludes state, local, inauguration and one-off closures. The end date is counted.

Every excluded day is named. Most calculators return a number you cannot check. This one lists the holidays it removed, with the date each one fell on and the day it substitutes for when a holiday landed at a weekend, so a wrong answer is visible instead of silent. Whether the end date counts is your choice, not an assumption: “five business days from Monday” usually excludes the start and includes the end, while “working days in September” counts both ends.

Common questions

How are business days counted between two dates?: The calculator counts Monday–Friday calendar dates, then removes the chosen holiday dates. It includes the earlier date and either includes or excludes the later date according to the toggle. Reversed dates are reordered; the end toggle still applies to the later date. The breakdown shows calendar, weekend and holiday totals, with each excluded holiday named. No local clock or daylight-saving transition changes the calendar count.
How do I add 10, 30, 45, 60 or 90 business days?: Choose Add days, supply a start date and enter a whole number such as 10, 30, 45, 60 or 90. Positive counts move forward, negative counts move backward, and neither includes the start date. Weekends and the chosen holiday calendar are skipped. A zero count returns the starting date even if it is a weekend or holiday. Valid thousands grouping such as 1,000 is accepted; a range such as 7–10 needs two separate calculations.
How long are two or 21 business days?: It depends on the start date and the holiday calendar. With weekends only, two business days after Friday 13 March 2026 is Tuesday 17 March. Two business days after Monday 9 March is Wednesday 11 March. Enter your own start date and 2 or 21 in Add days to obtain the actual calendar date. A supplied business-day interval does not predict a carrier delivery or service deadline.
Which US holidays are included?: The model uses recurring federal holidays for a Monday–Friday schedule: New Year’s Day, Martin Luther King Jr. Day, Washington’s Birthday (often called Presidents’ Day), Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving and Christmas. It retains historical start-year rules for MLK and Juneteenth. It excludes state, local, regional Inauguration Day, company and one-off office closures. The observed dates are checked against OPM schedules for 2024–2030; other years are rule projections.
Does UK mean every UK holiday calendar?: The UK control selects England and Wales only. It includes Good Friday, Easter Monday, bank holidays and recorded one-off exceptions such as the 2022 Jubilee and funeral and the 2023 coronation. Scotland and Northern Ireland have different calendars and are not included. The dates are checked against the saved GOV.UK schedules for 2019–2028; older and later calculations are projections, not a complete closure history or a prediction of future announcements.
How are substitute holidays handled?: For the modelled US Monday–Friday schedule, a Saturday holiday moves to Friday and a Sunday holiday to Monday. New Year’s Day can therefore be observed on the previous 31 December. England and Wales use the next available weekday; Christmas and Boxing Day substitutes retain their correct names when both need moving. The holiday list names each substitute and its original date.
How do business days compare with calendar days and weeks?: Calendar days include every counted date. Business days remove weekends and the selected holidays, so a conversion needs actual dates. Five business days equal one five-day workweek only when no holiday is removed: 40, 75 and 90 business days equal 8, 15 and 18 such workweeks. These are workweek equivalents, not elapsed calendar weeks. Hours cannot be converted to business days without specifying the working hours per day, which this tool does not model.
Can I calculate shipping, lead time or a deadline?: You can add a business-day interval you already know to a supplied date. The tool does not know carrier transit estimates, order cutoffs, regional service calendars, legal counting rules or USCIS schedules. For a range such as 2–3 business days, calculate 2 and 3 separately from the same date; there is no combined range input. For business days until a holiday, supply its actual date in Between dates; no named-holiday lookup is built in.
Does it support Excel or other countries’ holidays?: This is a browser calculator; it does not generate Excel formulas or operate a workbook. The rendered calendars are weekends only, recurring US federal holidays, and England and Wales bank holidays. Canadian, Australian, Indian and other national or provincial calendars, custom weekend patterns and company days off are not selectable here.
Are my dates saved or sent anywhere?: The calculation runs in your browser. Restoration does not rewrite saved data. Valid deliberate edits are saved locally and preserve other fields in a usable saved entry; invalid drafts keep the previous saved calculation. An unusable saved entry is kept until you choose Forget saved calculation. Clipboard refusal leaves a complete selectable summary for manual copying.

Weekend counts are exact for the Gregorian dates supplied. Holiday schedules are checked for US 2024–2030 and England and Wales 2019–2028; outside those windows, results are rule projections. State, local, company, Scotland, Northern Ireland and unlisted one-off closures are excluded.