Time Calculator

Add or subtract hours, minutes, and seconds
Hours : Minutes : Seconds
Hours
Minutes
Seconds
About Time Calculations

Time calculations help you add or subtract time periods for various applications.

Common Uses:

  • Work Schedules: Calculate shift durations and breaks
  • Travel Planning: Add travel time to departure times
  • Cooking: Recipe timing and meal preparation
  • Sports: Race times and performance tracking

Time Conversion:

  • 1 hour = 60 minutes = 3,600 seconds
  • 1 minute = 60 seconds
  • 1 day = 24 hours = 1,440 minutes

Calculation Tips:

  • Results automatically handle carry-over (e.g., 90 minutes = 1 hour 30 minutes)
  • Negative results indicate times before the start time
  • Use for precise timing beyond simple clock arithmetic
  • Helpful for calculating durations and elapsed time

This calculator works with 24-hour time format and handles time arithmetic across day boundaries.