Hours Calculator: Calculate Duration & Time Difference

Easily calculate total working hours, duration between two times, or the number of hours in a period. Ideal for timesheets and scheduling.

Input Parameters

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Ready to Calculate

Fill in the required parameters on the left and click calculate to see the detailed results and analysis.

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Better Time Management with the Hours Calculator

Have you ever found it difficult to calculate your total working hours in a day, especially when it involves breaks or overtime? Calculating time differences manually can be confusing because the time base is 60 (minutes), not 100 like regular decimal numbers. Our Hours & Duration Calculator helps you get accurate time details for various productivity purposes.

Primary Uses of the Time Duration Calculator

  • 1Timesheets: For freelancers or employees paid by the hour, calculating work duration is essential to ensure the salary received is correct.
  • 2Schedule Planning: Calculating how long an event lasts or how much time you have left before a deadline.
  • 3Logistics and Transportation: Calculating travel duration between cities or countries by taking into account departure and arrival times.
  • 4Study and Learning: Tracking focus study time (like the Pomodoro technique) for more disciplined daily time management.

    • How to Calculate Working Hours Manually

    If you want to calculate it yourself, here are the safe steps:

  • •Subtract end minutes from start minutes. If the result is negative, borrow 60 minutes from the hour column.
  • •Subtract end hours from start hours.
  • •Subtract your break duration from that total time.
    • Alternatively, use this calculator to avoid calculation errors that could risk your paycheck.

    12-Hour vs. 24-Hour Time Format

    Some countries use the 24-hour format (e.g., 14:00), while others use the 12-hour format with AM (before noon) and PM (after noon) indicators. Our calculator supports flexible time inputs so you don't have to worry about converting formats first.

    Tips to Improve Work Time Efficiency

  • •Record in Real-time: Don't rely on memory. Record the start and end times exactly when you switch activities.
  • •Account for Breaks: Don't forget lunch breaks or short breaks as they affect your total productive hours.
  • •Use Tools: Using an online duration calculator is faster and less prone to errors than scribbling on paper.

    • How to Use This Hours Calculator

    Enter the start and end times. If you have a break time that you don't want to count as working hours, enter its duration in the minutes column. Click calculate, and you will see the total duration in Hour:Minute format as well as total hours in decimal format (e.g., 8.5 hours for 8 hours 30 minutes).

    ? Frequently Asked Questions

    Q What are normal working hours in a day?

    In many regions, normal working hours are 40 hours a week (e.g., 8 hours a day for 5 workdays, or 7 hours a day for 6 workdays).

    Q How to convert minutes to decimal hours?

    Divide the number of minutes by 60. Example: 30 minutes = 30/60 = 0.5 hours. 15 minutes = 15/60 = 0.25 hours.

    Q Is break time counted as working hours?

    Generally, break time (such as a 1-hour lunch) is not counted in total productive working hours and is unpaid, unless there is a specific agreement with the employer.

    Q What if the end time passes midnight?

    Our calculator automatically detects if the end time is smaller than the start time (meaning it passes to the next day) and still provides the correct duration as long as the range is not more than 24 hours.

    Q What is the use of total decimal hours in a paycheck?

    Total decimal hours make it easier for the payroll department to multiply the number of hours worked by the hourly wage. For example: 8.75 hours multiplied by $50 is much easier to calculate than 8 hours 45 minutes.