Date calculator
Count Monday-Friday business days between two Gregorian dates without applying holiday calendars or custom closures.
Enter dates and run the calculator.
Guide
The Business Days Calculator counts weekdays between two Gregorian dates. It treats Monday through Friday as business days and ignores Saturdays and Sundays.
The current implementation includes both endpoints when they fall on weekdays. It does not exclude public holidays, company closures, or regional non-working days.
Use this page for a clear Monday-Friday count when holidays are handled somewhere else. If your organization uses a different workweek, local holiday table, or custom closure schedule, adjust the result before relying on it.
What it handles
Counts Monday, Tuesday, Wednesday, Thursday, and Friday.
The calculator uses a standard Monday-Friday workweek. Saturdays and Sundays are skipped even when they fall between the start and end dates.
This is a simple weekday count, not a configurable regional work calendar.
Includes the start and end dates when they are weekdays.
Endpoint inclusion means a Monday-to-Friday range returns 5 business days, not 4. If the start or end date falls on a weekend, that endpoint is skipped like any other weekend day.
This rule is shown in the result basis so users can confirm the count before applying it to a policy or report.
Does not remove public holidays or custom non-working days.
Public holidays vary by country, region, employer, and year. This calculator intentionally does not include those lists, so a weekday holiday still counts as a business day here.
For payroll, legal deadlines, or service commitments, compare the weekday count with the holiday rules that apply to your situation.
How to use
Choose the first Gregorian date in the interval.
The start date can be a weekday or a weekend. If it is Monday through Friday, it is included in the count; if it is Saturday or Sunday, the count begins with the next weekday inside the range.
Use the exact date that anchors the work window so the endpoint rule remains clear.
Choose the second Gregorian date in the interval.
The end date is also included when it is a weekday. If the range is reversed, the calculator still counts weekdays across the interval defined by the two dates.
For directional status, use the Days Until or Date Difference calculators; this page focuses on weekday count.
Check the result note to confirm that holidays are not excluded.
The basis note is part of the answer because business-day rules differ widely. Read it before copying the result into a contract, ticket, or spreadsheet.
If a holiday or closure should be excluded, subtract it after the base Monday-Friday count or use a jurisdiction-specific calendar.
Examples
Both endpoints count when they are weekdays.
This example illustrates the inclusive endpoint rule. Monday, Tuesday, Wednesday, Thursday, and Friday each count once.
If one of those weekdays is a public holiday in your location, this calculator still counts it unless you adjust the result yourself.
Saturday and Sunday are skipped, while Friday and Monday are counted.
The weekend days inside the range are ignored, but the weekday endpoints remain included. That is why a Friday-to-Monday range returns 2, not 4.
This is the most important difference between this page and a plain calendar-day difference.
Use cases
Estimate weekday capacity between two calendar dates.
Use the count to estimate how many standard workdays fall inside a project window, review period, or staffing interval. It is a quick baseline before applying local holiday or capacity assumptions.
The result should be treated as an estimate when teams work non-standard schedules.
Check rough weekday counts for response windows when holidays are handled elsewhere.
Some service rules are stated in business days but use a separate holiday calendar. This calculator can provide the Monday-Friday baseline, then the specific SLA policy can handle exclusions.
Do not use the raw result as a final legal or contractual count unless the policy also uses this exact basis.
Compare calendar-day gaps with Monday-Friday working-day gaps.
Comparing this result with a calendar-day difference can show how much of an interval is made up of weekends. That is helpful for explaining why a work window feels shorter than the raw date range.
For official schedules, keep both the count and the counting basis visible.
FAQ
No. The calculator only excludes Saturdays and Sundays.
A weekday holiday still counts as a business day in this tool because no country-specific or organization-specific holiday table is loaded. That keeps the result simple and transparent.
If public holidays matter, apply the relevant calendar after calculating the base weekday count.
Yes, when those dates are weekdays. Weekend endpoints are not counted.
The inclusive endpoint rule is why a single weekday entered as both start and end returns 1 business day. A single Saturday or Sunday returns 0.
This rule may differ from some policies, so check the wording before using the result as a final deadline count.
Reference
The calculator loops through the date range and counts ISO weekdays 1 through 5. It does not use a country-specific holiday table.
Both endpoints are evaluated as part of the range. Weekday endpoints are counted, while Saturday and Sunday endpoints are skipped.
The result is a Monday-Friday count only. Public holidays, company closure days, regional weekends, and non-standard work schedules must be handled outside this calculator.
