Hours Calculator

Calculate the total hours and minutes worked between two times, optionally subtracting a break period. Useful for time tracking and payroll.

Start Time (HH:MM, 24h)

End Time (HH:MM, 24h)

Break Duration (minutes)

Result

Please check your inputs.

📖 How to Use This Tool

Enter your start time using the hour and minute fields, ensuring you select AM or PM correctly.

Enter your end time in the same format.

Optionally, specify a break duration in hours and minutes to subtract (e.g., a lunch break).

Click the 'Calculate' button to instantly get the total hours and minutes worked.

Review the result displayed, which shows both decimal hours and hours:minutes format for easy payroll or tracking.

📝 What Is Hours Calculator?

An Hours Calculator is a simple yet powerful tool that computes the exact duration between a start time and an end time, minus any break periods you choose to deduct. It converts clock-in and clock-out times into the precise number of hours and minutes worked, eliminating manual math errors and saving you time. Businesses, freelancers, and remote workers rely on it for accurate time tracking, payroll calculations, and project billing.

This tool matters because even small miscalculations in time can lead to underpayment or overpayment. With an hours calculator, you get consistent, error-free results that you can trust for employee timesheets or personal productivity tracking. It also helps you ensure fair compensation by automatically handling complex cases like times that cross midnight or include multiple break deductions.

🧮 Formula

Total Hours Worked = (End Time - Start Time) - Break Time

First, convert all times to a 24-hour numeric value (e.g., 1:30 PM becomes 13.5). Subtract the start time from the end time to get the gross hours. If the end time is earlier than the start time (e.g., overnight shift), add 24 hours to the end time. Then subtract the break duration (in hours and minutes) to obtain the net hours worked. The result is displayed both as decimal hours (e.g., 7.5) and as hours and minutes (e.g., 7:30).

💡 Tips for Best Results

✨🕒 Always use a consistent time format (24-hour or AM/PM) to avoid confusion when entering times.

✨📅 For overnight shifts (e.g., 10 PM to 6 AM), the calculator automatically detects the crossing of midnight — just enter times as they appear on the clock.

✨⏱️ When entering breaks, be precise: a 30-minute lunch should be entered as 0 hours and 30 minutes, not 1 hour.

✨📊 Use the decimal hours output for payroll systems that pay by the fraction of an hour (e.g., 7.5 hours) and the hours:minutes format for daily time logs.

❓ Frequently Asked Questions

How do I handle a shift that starts at night and ends the next morning?

Simply enter the start time (e.g., 10:00 PM) and end time (e.g., 6:00 AM) as you see them. The calculator automatically adds 24 hours to the end time when the end is earlier than the start, giving you the correct total of 8 hours (minus any break).

Can I use this tool for multiple days or weekly totals?

This calculator works for a single time pair at a time. If you need weekly totals, compute each day separately and add the decimal hour results together. A weekly row-by-row approach is the most reliable.

What time formats does the calculator support?

It supports both 12-hour (AM/PM) and 24-hour formats. Simply select your preferred input format before entering times. The output will always show both decimal hours and hours:minutes for clarity.