Business Hours Calculator
Choose the interval and work schedule.
A QUICK WALKTHROUGH
How to use this tool
- Enter the interval start and end with minute precision.
- Select working weekdays and a same-day opening and closing time.
- Calculate the overlapping minutes, hours, 24-hour days and dates.
Fixed local timeline
Use one fixed local calendar timeline. No holidays, time-zone conversion or daylight-saving changes are applied. The end must follow the start, and closing must follow opening on the same day. Maximum interval: 3,660 days; years 0001–9999. Inputs have minute precision.
Business time
A day in the result means 24 hours, not one scheduled workday. Partial daily windows count only their overlap with the interval.
Calculation stays in your browser; inputs are not uploaded or saved.
Calculation stays in your browser; inputs are not uploaded or saved.
GOOD TO KNOW
Common questions
Does this handle holidays or overnight work?
No. It does not apply holidays, time zones or daylight saving. A daily window must close later on the same date; overnight windows are rejected.