Date & Time • Precision Calculator

Time Duration Calculator

Calculate the total elapsed duration and difference between two times with decimal hours and unpaid break deductions. Perfect for employee timesheets, freelance billing hours, and shift work logs.

Enter Time Span

minutes
Automatically deducted from total duration

Elapsed Time

Total Net Duration
8h 0m
8.00 Decimal Hours (for billing/payroll)
Gross Hours
8.50 hrs
Break Time
-30 mins
Total Minutes
480 mins
Total Seconds:28,800 seconds
Start Timestamp:2026-11-04 09:00
End Timestamp:2026-11-04 17:30

How to Use Time Duration Calculator Online

  1. Enter start time: Choose beginning hours, minutes, and AM/PM.
  2. Enter end time: Choose ending hours, minutes, and AM/PM (supports spanning past midnight).
  3. Calculate elapsed time: View the total hours, minutes, and decimal hours elapsed.

ClickBasic tools run 100% securely with zero installation, no registration, and no limits.

Key Features of ClickBasic Time Duration Calculator

Exact Elapsed Duration: Calculates the difference between two timestamps with minute and second precision.
Overnight Shift Support: Seamlessly handles work shifts and timers that cross past midnight.
Decimal Hours for Timesheets: Converts hours and minutes (e.g., 7h 45m) into decimal hours (7.75) for billing and payroll.
One-Click Copy: Copy formatted durations directly to your invoices or time-tracking software.

Frequently Asked Questions

Enter your shift clock-in and clock-out times. The calculator gives you both hours/minutes and decimal hours for easy multiplication by hourly wage.

Our calculator automatically detects when the end time is on the following day and computes the correct overnight duration.

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