Time Duration Calculator
Calculate the exact duration between two times.
How to Calculate Time Duration Between Two Times
Calculating the exact time difference between two specific moments can be tricky, especially when dealing with AM/PM formats or time spans that cross over midnight. Our free Time Duration Calculator simplifies this process, giving you the precise number of hours, minutes, and seconds between any start and end time.
Why Use an Online Time Calculator?
Manual time calculations are prone to errors. Whether you are calculating payroll hours, tracking sleep duration, or planning a road trip, accuracy matters. This tool eliminates the need for mental math or complex spreadsheet formulas. It handles 12-hour logic automatically, ensuring you get the correct result every time.
How to Use This Tool
- Enter Start Time: Input the hour and minute you want to start counting from. Select AM or PM.
- Enter End Time: Input the hour and minute you want to stop counting. Select AM or PM.
- Calculate: Click the "Calculate Duration" button.
- View Results: Instantly see the total duration in hours and minutes, along with a detailed breakdown in total minutes and seconds.
Features of Our Time Span Calculator
- Overnight Support: Most calculators fail when the end time is "smaller" than the start time (e.g., 10 PM to 2 AM). Our tool intelligently detects this as an overnight shift and calculates correctly.
- Mobile Friendly: Designed to work perfectly on smartphones and tablets for on-the-go calculations.
- Privacy Focused: All calculations happen directly in your browser. No data is sent to our servers.
Common Use Cases
- Work Shifts: Calculate total hours worked for payroll or timesheets.
- Sleep Tracking: Find out exactly how long you slept by entering your bedtime and wake-up time.
- Flight Duration: Determine the length of a flight by entering departure and arrival times.
- Cooking & Baking: Track elapsed time for recipes that require precise timing.
Frequently Asked Questions (FAQ)
How do I calculate time duration?
Simply enter your start time and end time, selecting AM or PM for each. Click 'Calculate' to see the exact hours and minutes between them.
Does this handle overnight times?
Yes! If your end time is earlier than your start time (e.g., 10 PM to 2 AM), the calculator automatically assumes it's the next day and calculates the duration correctly.
Is this tool free?
Yes, this Time Duration Calculator is 100% free to use with no limits.