Calculate hours
precisely
With our hours calculator you can easily calculate the time span between two points in time. Enter start date and end date – including break deduction and decimal hours.
Hours Calculator
Result
Key Facts at a Glance
- The hours calculator takes leap years and daylight saving time changes into account automatically.
- Results are shown in standard time format and decimal hours – ideal for payroll.
- You can also factor in breaks and have them deducted directly from the calculation.
- The calculator runs entirely in your browser – no data is sent to any server.
Why Our Time Calculator?
Fast, precise and free – right in your browser, no installation needed.
Second-Accurate Precision
Calculations accurate to the second – including cross-date spans, weeks and decimal hours for exact payroll.
Instant Calculation
No loading times, no server needed. All calculations happen directly in your browser – fast and secure.
Break Deduction Included
Automatically deduct breaks from total time. Perfect for time tracking and project logs.
Frequently Asked Questions
Everything important about the time calculator at a glance.
How do I calculate the hours between two time points?
Simply enter the start time and end time (each with date and time) into the input fields and click 'Calculate'. The calculator instantly determines the difference in hours, minutes, seconds, days and weeks.
What are decimal hours and why do I need them?
Decimal hours show the time span as a decimal number (e.g., 8.50 hours instead of 8 hours 30 minutes). This format is commonly used in payroll, project time tracking and work time reports because it is easier to calculate with.
Can I deduct break times from the calculation?
Yes! Simply activate the 'Deduct Break' switch and enter the break duration in hours, minutes and seconds. The break is automatically subtracted from the total time span. Ideal for work time tracking.
Does the time calculator work across multiple days?
Yes, the calculator supports any time span – from a few minutes to several weeks or months. You can freely choose start and end dates, even past midnight or across multiple weeks.
Is the time calculator free?
Yes, the time calculator is completely free, without registration and without ads. All calculations take place locally in your browser – your data is not sent to any server.