Hours Calculator ⏱️

Calculate time duration between start & end times. Perfect for timesheets, work hours, and event planning.

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Hours Calculator ⏱️

Calculate time duration between start & end times. Perfect for timesheets, work hours, and event planning.

Calculate Hours & Duration

⏱️ Time Calculation Result
0h 0m
Days

0

Hours

0

Minutes

0

Seconds

0

Why Use Our Hours Calculator?

💼 Perfect for Work

Calculate work hours, overtime, and break times accurately for payroll and timesheets.

📅 Event Planning

Plan events, meetings, and schedules with precise time calculations and duration tracking.

📊 Multiple Formats

Get results in days, hours, minutes, and seconds. See total hours and detailed breakdown.

📱 Mobile Friendly

Calculate time on any device. Perfect for on-the-go professionals and students.

🕐 Time Operations

Not just duration - add or subtract time from any date for flexible calculations.

🔒 Privacy First

All calculations happen in your browser. Your time data never leaves your device.

How to Use the Hours Calculator

1
📋 Choose Calculation Type

Select between Duration Calculator (time between two points) or Add/Subtract Time (modify a base time).

2
📝 Enter Your Times

For duration: enter start and end date/time. For add/subtract: enter base time and values to modify.

3
🎯 Click Calculate

Press the appropriate button to get your time calculation results instantly.

4
📊 Review Results

See your time breakdown in days, hours, minutes, and seconds with total duration displayed clearly.

Frequently Asked Questions

To calculate work hours, use the Duration Calculator tab. Enter your start time (e.g., 9:00 AM) and end time (e.g., 5:00 PM). The calculator will show you the total hours worked, including any days if it spans multiple days. You can also subtract break times using the Add/Subtract Time feature.

Yes! Simply enter the full date and time for both start and end points. The calculator automatically handles date differences and will show you the total duration in days, hours, minutes, and seconds. This is perfect for calculating overnight shifts or multi-day events.

The Add/Subtract Time feature lets you modify a base date/time by adding or subtracting specific amounts of time. Enter your base date/time, then input the number of days, hours, and minutes you want to add or subtract. Click "Add Time" or "Subtract Time" to see the new date/time result.

The calculator uses your local browser time zone for all calculations. If you need to calculate times across different time zones, you'll need to manually adjust the times to the same time zone before entering them. The duration calculation will be accurate regardless of time zone as long as both times are in the same zone.

Absolutely! All time calculations are performed directly in your browser. No date/time data is sent to any server or stored anywhere. Once you close the page, all information is gone. This ensures complete privacy and security for your time calculations and schedules.