# Business Day Calculator

Calculate business days excluding weekends

> Canonical page: https://elysiatools.com/en/tools/business-day-calculator

- **Category:** Date & Time

- **Keywords:** business, work, day, calculator, weekend, working

## Overview

The Business Day Calculator is a precise utility designed to help you determine future dates or calculate the duration between two dates by automatically excluding weekends.

## Inputs

- **Operation** (select)
- **Start Date** (text): Enter start date (e.g., 2024-01-15)
- **Business Days to Add** (text): Enter number of business days
- **End Date** (text): Enter end date (e.g., 2024-12-31)

## When to use

- Determining project delivery deadlines based on a specific number of working days.
- Calculating the exact number of business days between two calendar dates for payroll or billing.
- Planning schedules that require skipping Saturdays and Sundays to ensure accurate timeline projections.

## How it works

- Select your operation: 'Add Business Days' to find a future date, or 'Count Business Days' to find the duration between two dates.
- Enter your start date in the required format.
- Input the number of days to add or provide an end date to calculate the difference.
- Click calculate to receive the precise result based on a standard Monday-to-Friday work week.

## Use cases

- Project management for estimating task completion dates.
- HR and payroll departments calculating billable work days.
- Contractual agreement tracking for business-day-based deadlines.

## Frequently asked questions

### Does this tool account for public holidays?

No, this calculator currently only excludes Saturdays and Sundays.

### What is the difference between the two operations?

'Add Business Days' finds a future date by skipping weekends, while 'Count Business Days' calculates the total working days between two specific dates.

### Can I calculate dates across multiple years?

Yes, the tool supports date calculations across any year range.

### What happens if I enter a weekend as a start date?

The tool uses the provided date as the anchor point for your calculation regardless of whether it falls on a weekend.

### Is the result inclusive of the start date?

The calculation counts the number of full business days following the start date.

## Related tools

- [Work Hours Calculator](https://elysiatools.com/en/tools/work-hours-calculator): Calculate work hours using start and end times
- [Holiday Calculator](https://elysiatools.com/en/tools/holiday-calculator): Calculate holidays for a specific year and country
- [Timezone Duration Calculator](https://elysiatools.com/en/tools/timezone-duration-calculator): Calculate duration, time gap, and business-day differences between two timestamps in different time zones with DST awareness
- [Leap Second Table — IERS DUT1, TAI-UTC Offset & Cross-System Time](https://elysiatools.com/en/tools/leap-second-table-iers-dut1-tai-utc-offset-diff): IERS leap-second history (27 insertions since 1972), current TAI-UTC offset (+37 s), DUT1 (UT1-UTC) notes, and POSIX/NTP/GPS/TAI/UT1 cross-system conversion for a given UTC instant
- [Working Days Calculator](https://elysiatools.com/en/tools/working-days-calculator): Calculate working days between two dates, excluding weekends and holidays
- [Day of Week Calculator](https://elysiatools.com/en/tools/day-of-week-calculator): Calculate what day of the week a given date falls on
- [Julian Day Converter](https://elysiatools.com/en/tools/julian-calendar): Convert dates to/from Julian Day Number and Julian calendar
- [Time Adder/Subtractor](https://elysiatools.com/en/tools/time-adder-subtractor): Add or subtract time from a date

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- [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion
