How to use this calculator
- Enter the beginning time of the interval.
- Enter the ending time, using an earlier value when the interval crosses midnight.
- Calculate the elapsed hours and minutes.
- Use a paid-hours calculator instead when breaks or payroll rules must be included.
Input guide
Start time
Enter the start time used for this estimate and confirm that its unit and pay period match the other inputs.
End time
Enter the end time used for this estimate and confirm that its unit and pay period match the other inputs.
How this calculator works
Elapsed minutes = end time − start time, adding 24 hours when the interval crosses midnight.
Worked example
9:00 AM to 5:30 PM is 8 hours 30 minutes, or 8.50 hours.
How to interpret the result
The hours-and-minutes result shows elapsed clock time, while decimal hours provide the same interval in payroll-style notation. Because no break is deducted, this result should not automatically be treated as paid work time.
Rounding policy
Elapsed time
Calculated to the nearest whole minute.
Assumptions and limitations
- The interval is shorter than 24 hours.
Frequently asked questions
Can the interval cross midnight?
Yes. An earlier end time is treated as the next day.
Does this subtract lunch?
No. Use the Shift Calculator or Hours Worked Calculator for break deductions.
How should I verify the time duration result?
Compare the inputs and formula with time records, payroll policy, the employment agreement, and any applicable primary source before relying on the estimate.
Is the time duration calculation stored online?
No. MyClockLedger calculations run in the browser and do not require uploading the entered values.