Time Duration Calculator

Use the calculator below to find the hours, minutes, and seconds between two times.

Modify the values and click the calculate button to use

Time Between Two Dates

Use this time and date duration calculator to find out the number of days, hours, minutes, and seconds between the times on two different dates.

Steps to Calculate the Duration

1. Identify the Times
   • Determine your starting time and ending time.
   • Your goal is to subtract the starting time from the ending time.
2. Convert to 24-Hour Format (if needed)
   • If your times are in 12-hour format, convert them to 24-hour time.
   • For AM times, the hour remains the same.
   • For PM times, add 12 to the hour.
     Example: 1:00 PM becomes 13:00.
3. Compare the Minutes
   There are two cases to consider based on the minutes of the start and end times:
   • Case A: Ending Time Minutes ≥ Starting Time Minutes
     • Simply subtract the hours and the minutes directly.
     • Example:
       End Time: 13:57
       Start Time: 9:22
       Calculation:
       Hours: 13 − 9 = 4
       Minutes: 57 − 22 = 35
       Duration: 4 hours 35 minutes
   • Case B: Ending Time Minutes < Starting Time Minutes
     • Since the ending minutes are less, “borrow” 60 minutes from the ending hour.
     • Reduce the ending hour by 1 and add 60 to the ending minutes.
     • Then perform the subtraction.
     • Example:
       End Time: 13:57
       Start Time: 9:58
       Adjusted End Time:
       • New Hour: 13 − 1 = 12
       • New Minutes: 57 + 60 = 117
         Calculation:
         Hours: 12 − 9 = 3
         Minutes: 117 − 58 = 59
         Duration: 3 hours 59 minutes

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This approach ensures you account for situations where the minutes in the ending time are not enough to cover the minutes in the starting time.