Time Duration Calculator
Calculate the duration between two times in hours, minutes and seconds using the below calculator.
Time Between Two Dates
Use this calculator to calculate the exact duration days, hours, minutes, and seconds between two different dates and times.
What Is a Time Duration Calculator?
A Time Duration Calculator helps you find the exact difference between two times or two dates. Whether you want to calculate how long you worked, the time between appointments, or the total duration of an event, this tool gives you fast and accurate results without manual math.
It converts time differences into hours, minutes, and seconds, and when using the date-time calculator, it can also calculate the duration in days, weeks, months, or even years, depending on your input.
Why Use a Time Duration Calculator?
Many people need to measure time gaps for different reasons:
- Employees tracking their working hours
- Freelancers & contractors who bill by the hour
- Students managing study sessions or exam timings
- Event planners scheduling activities
- Health & fitness users tracking workout durations
- Travelers calculating time between flights or trips
Manually calculating time differences can be confusing, especially when AM/PM, midnight, or multi day duration is involved. This calculator removes all guesswork.
Features of Our Time Duration Calculator
- Calculate time difference in hours, minutes, and seconds
- Supports AM/PM and 24-hour format
- Instant “Now” button to auto fill the current time
- Handles cross-day calculations (e.g., 10 PM to 6 AM next day)
- Clear & simple interface for everyday use
- Includes a Date + Time difference calculator for longer durations
- Outputs results in multiple formats: exact duration, total hours, total minutes, total seconds
How to Use the Time Duration Calculator
- Enter the start time and end time.
- Select AM or PM if using 12 hour format.
- Click Calculate to get the exact duration.
- Use the Clear button to reset and calculate again.
- For longer periods, switch to the Date and Time Difference Calculator.
The tool instantly calculates the difference and displays easy to understand results.
Example Calculations
- Working shift: 8:30 AM to 5:30 PM → 9 hours
- Gym workout: 6:15 PM to 7:50 PM → 1 hour 35 minutes
- Study session: 10:00 PM to 1:00 AM → 3 hours
- Overnight duration: 9:45 PM to 6:00 AM → 8 hours 15 minutes
Benefits of Using an Online Time Difference Calculator
- Saves time
- Avoids human error
- Works on any device
- Ideal for daily time tracking
- Helps with productivity and scheduling
If you track time regularly whether for work, billing, fitness, or planning this calculator becomes a handy everyday tool.
Frequently Asked Questions (FAQ)
1. Can this calculator handle times across midnight?
Yes. If your end time is on the next day, the calculator automatically adjusts and gives an accurate result.
2. Does it support seconds?
Yes. You can enter seconds for both start and end times.
3. Can I calculate the difference between two dates?
Yes, the Date & Time Calculator section lets you calculate the exact duration across days, weeks, or months.
4. Is the tool free to use?
Absolutely. It's 100% free and works instantly in your browser.