Add to favorites
Loading tool...

About Time Calculator

Add and subtract time durations, calculate differences between times, and convert between hours, minutes, and seconds. Essential for time tracking and scheduling.

How to Use

  1. 1Enter times or durations
  2. 2Select operation (add, subtract)
  3. 3View calculated result
  4. 4Convert between formats

Key Features

  • Add times together
  • Subtract times
  • Calculate time differences
  • Hours/minutes/seconds conversion
  • Multiple format support

Common Use Cases

Timesheet calculationsTravel time planningEvent schedulingProject time trackingWorkout timing

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.

You might also like

Date & Age Calculator

Calculate exact age in years, months, and days. Find date differences, countdowns, zodiac signs, and detailed time breakdowns

Aspect Ratio Calculator

Calculate aspect ratios, resize dimensions while maintaining proportions. Common presets for video, photo, mobile screens, and social media

Scientific Calculator

Advanced calculator with scientific functions and history