Utility PlatformPractical online tools

Business Hours Calculator

Calculate working hours between two dates, exclude holidays, customize your work week, or find a deadline by adding or subtracting business hours.

Built for real working-time calculations.Unlike a simple weekday counter, this calculator can use different hours for each day, split shifts, and a custom holiday list.

Business-time calculator

Choose a mode, configure the calendar once, then calculate.

Result

Enter your dates and schedule, then calculate.

Holiday exclusions

Enter dates to exclude from business time. Use one YYYY-MM-DD date per line or separate dates with commas.

0 valid holiday datesOnly the dates you enter are excluded.

What this calculator does

It counts only the working minutes that fall inside your configured weekly schedule, then removes any holiday dates you supplied. The same calendar powers the deadline mode.

Useful for

  • SLA and support response windows
  • Project and contractor working time
  • Billable or chargeable hours
  • Business deadlines and turnaround times

Example

Mon 09:00 → Fri 17:00 = 40 business hours
Fri 15:00 + 10 business hours = Mon 17:00

Frequently asked questions

Each calendar day is checked against your weekly schedule. Only the minutes that overlap your selected start/end window are counted, and holiday dates are skipped.
Yes. Enter as many holiday dates as needed in the holiday box. A holiday removes all scheduled work periods for that date.
Yes. Every weekday has its own enabled state and up to two work periods, so the calendar can model part-time days, split shifts and shorter Fridays.
Yes. Use Add / subtract mode to move forward or backward through only the working minutes in your configured calendar.
No. The inputs represent local calendar date and clock time, and the calculator treats each calendar day as 24 hours. It does not know a time zone or model daylight-saving transitions.

A closely related calculator for general clock-time arithmetic.

Time CalculatorAdd, subtract and calculate elapsed time between clock values.

Method & calculation notes

This tool works in calendar minutes. It does not assume a standard Monday–Friday schedule unless you leave the default schedule unchanged. A business minute is counted only when it falls inside an enabled work period on a non-holiday date.

For general clock-time arithmetic without work schedules, use the Time Calculator.