A free and easy online calculator to add or subtract time. Perfect for calculating work hours from a timesheet, project durations, or elapsed time between two points. 

Started at 8:47 AM, Finished at 5:19 PM. How Long Did That Actually Take?

Our brains are great at math with tens, hundreds, and thousands. But when it comes to time—with its weird system of 60 seconds, 60 minutes, and 24 hours—mental calculations can get surprisingly tricky and annoying.

Trying to figure out the exact duration between two times or adding up hours for a timesheet often involves borrowing minutes, converting hours, and a whole lot of scribbling on a notepad. A Time Calculator is a simple tool designed to handle this awkward math for you, giving you an accurate answer without the headache.

When is a Time Calculator Your Best Friend?

This practical tool is perfect for a variety of everyday calculations:

• Calculating Work Hours: Add up your daily hours for a timesheet, even with an unpaid lunch break.

• Tracking Project Time: Log the total time spent on a client project over several days.

• Figuring Out Elapsed Time: Find out exactly how long that flight, road trip, or movie was.

• Planning Your Schedule: Add up the durations of several tasks to see if you can fit them all into your afternoon.

How to Calculate Time the Easy Way

Let the tool handle the tricky base-60 math for you:

1. Open the Time Calculator: Go to the FreeXTool Time Calculator.

2. Choose Your Operation: Select whether you want to add, subtract, or find the duration between two times.

3. Enter the Values: Input the hours, minutes, and seconds into the fields.

4. Get the Result: The calculator will instantly give you the accurate total, properly formatted into hours, minutes, and seconds.

Pro-Tip: Use 24-Hour Time for Simplicity

When calculating the duration between two times that cross the noon (PM) mark, it's often easier to convert them to 24-hour time (also known as military time) first. For example, 5:19 PM becomes 17:19. This eliminates any AM/PM confusion and makes the subtraction much more straightforward.

Master your schedule and planning with these other time-based tools:

• Date Calculator

• Countdown Timer

• Drive Time Calculator