Time Duration Calculator
Calculate the interval between start time and end time.
Enter the time to deduct from the total in minutes.
What Is a Time Duration Calculator?
A time duration calculator helps you find the exact amount of time between any two points. Simply enter your start and end times, and the tool instantly calculates the elapsed duration. Whether you’re tracking work hours, measuring project timelines, or managing your daily schedule, this calculator makes time tracking effortless.
Key Features
Key features include precise calculations, flexible options, and multiple output formats designed to meet your needs.
Accurate Time Calculations
Enter your start and end times to get instant results. The calculator displays your total duration in hours and minutes format for easy reading.
Overnight Shift Support
Working late or tracking overnight activities? Check the “next day” option to calculate durations that cross midnight. Perfect for night shifts, travel times, or any activity spanning two calendar days.
Break Time Deduction
Subtract lunch breaks, rest periods, or any time off from your total. Enter your break time in minutes, and the calculator automatically adjusts your results to show actual working hours.
Multiple Output Formats
View your results in three different formats: hours and minutes, total minutes, and decimal hours. Choose the format that works best for timesheets, payroll systems, or personal records.
How to Use
How to use this calculator is straightforward—just follow these simple steps.
Start by entering your start time and end time. If the end time falls on the following day, check the “crosses midnight” box. Add any break time in minutes if needed. Click “Calculate” to see your results instantly.
Want to see how it works? Click “Sample Input” to load a typical workday example (9:00 AM to 6:00 PM with a 60-minute break).
Practical Applications
Practical applications for this tool extend across both professional and personal contexts.
For business use, track employee work hours, calculate overtime, manage project timelines, or generate accurate billing hours for freelance work. HR departments find it useful for payroll processing and attendance management.
In daily life, monitor study sessions, track workout durations, plan travel times, or measure any activity where knowing the exact time spent matters.
Additional Features
Additional features include theme customization and easy data export options.
Toggle between dark and light modes using the moon/sun icon in the corner. Dark mode reduces eye strain during extended use or low-light conditions.
Copy individual results to your clipboard with a single click, or save the entire calculation as an image file. These options make it easy to share results or include them in documents and reports.
Frequently Asked Questions
Can I calculate durations longer than 24 hours?
Yes, by using the “next day” option, you can calculate durations that span overnight. However, the calculator is designed for single-day or overnight calculations and does not support durations exceeding 48 hours.
How can I save my calculation results?
You have two options: use the “Copy” buttons to copy individual values to your clipboard, or click “Save as Image” to download your results as a PNG file for record-keeping or sharing.
Can I enter multiple break periods?
The break time field accepts a single value in minutes. If you have multiple breaks throughout the day, simply add them together and enter the total. For example, a 30-minute morning break plus a 60-minute lunch equals 90 minutes total.
What are decimal hours?
Decimal hours express time as a decimal number rather than hours and minutes. For example, 1 hour and 30 minutes equals 1.5 decimal hours. This format is commonly used in payroll systems, spreadsheets, and billing software for easier calculations.