Time Calculator Tool
Calculate time differences, add/subtract times, and track weekly work hours in real-time. Supports overnight calculations and overtime tracking.
| Actual Work | Overtime |
|---|
How to Use
Select Calculation Mode
Choose a tab: "Time Difference" for elapsed time between two times, "Add/Subtract" to sum multiple durations, or "Work Hours" for weekly work time tracking.
Enter Times
Enter start and end times. Click "Now" for current time. In the Work Hours tab, enter attendance, departure, and break times for each day of the week.
View & Copy Results
Results update in real-time as you type. View hours, minutes, seconds, and decimal hours. Use "Copy Result" to copy to clipboard.
About Time Calculator
A web tool for calculating time differences, adding/subtracting multiple durations, and tracking weekly work hours in real-time. Supports overnight shift calculations, automatic overtime computation, and legal work hour limits (8h/day, 40h/week). All processing happens in your browser - no data is sent to any server.
Features
- 3 Modes in OneTime difference, time addition/subtraction, and work hours - all in one tool with tab switching.
- Overnight SupportAccurately calculates time spans crossing midnight (e.g., 23:00 to 07:00). Perfect for night shifts.
- Real-time CalculationResults appear instantly as you enter times. No button clicks needed.
- Legal Hours CheckAutomatically compares against legal limits (8h/day, 40h/week) and highlights overtime.
Use Cases
- Verify timecard hours and calculate overtime
- Calculate meeting or event durations
- Night shift and overnight time calculations
- Sum up multiple task durations
- Convert time to decimal hours for payroll