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Hours Calculator

Use our Hours Calculator to find the time between two clock times, calculate hours and minutes, check work hours, and get a quick result for timesheets, payroll, and daily tasks.
Start Time
End Time
Total Time
8h
Decimal Hours

8h

Total Minutes

480m

Recent
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How can you use our Hours Calculator?

Our Hours Calculator helps you find the time between two clock times in seconds. Enter your start and end times, choose AM or PM, then view and copy your total hours and minutes.

Step 1

Enter Your Times

Enter the start and end times into the calculator.

Step 2

Select AM or PM

Choose AM or PM for each time.

Step 3

View Your Results

Get the total hours and minutes instantly.

Step 4

Copy Your Result

Copy the calculated time for future use.

How do you calculate hours between two clocks time manually?

Formula:

Hours=EndTime−StartTimeHours = End Time - Start Time

Step by step guide:

  1. Write the start time.
  2. Write the end time.
  3. Subtract the start time from the end time.
  4. Borrow 60 minutes when needed.
  5. Check the total hours and minutes.

Practical Example:

From 9:00 AM to 5:30 PM, the total is 88 hours and 3030 minutes.

Converting Hours and Minutes to Decimal Hours

Decimal hours show time as a number instead of hours and minutes. Use Decimal Hours=Total Minutes/60Decimal\ Hours = Total\ Minutes / 60. Example: 30 minutes equals 30/60=0.530 / 60 = 0.5 hours.

  1. Convert the full hours into hours.
  2. Divide extra minutes by 60.
  3. Add both values.
  4. Check the decimal result.

To convert back, use Minutes=Decimal Hours∗60Minutes = Decimal\ Hours * 60. Example: 7.5 hours gives 7∗60+0.5∗60=4507 * 60 + 0.5 * 60 = 450 minutes, or 7 hours and 30 minutes. This format helps with payroll and timesheets.

Minutes to Decimal Hours

Use Decimal Hours=Minutes/60Decimal\ Hours = Minutes / 60. For example, 45 minutes equals 45/60=0.7545 / 60 = 0.75 decimal hours. Add the full hours to the decimal value. Thus, 7 hours and 45 minutes equals 7.757.75 hours.

Decimal Hours to Hours and Minutes

Use Minutes=Decimal Hours∗60Minutes = Decimal\ Hours * 60. For example, 0.5∗60=300.5 * 60 = 30 minutes. Therefore, 7.5 decimal hours equals 7 hours and 30 minutes.

Hours Between Two Dates

Use the date option when your start and end times fall on different dates. It helps with overnight shifts and longer work periods. Enter the correct start date and end date, then review the total time before saving it.

12-hour clock

A 12-hour clock uses AM and PM. Enter 8:00 AM and 5:00 PM to calculate a normal daytime work period without confusion. This format suits common US time entries.

24-hour clock

A 24-hour clock runs from 00:00 to 23:59. For example, 17:00 means 5:00 PM, which helps avoid AM and PM mistakes. Many workplaces use this format for clear shift records.

Hours in different time periods

A day has 24 hours, a week has 168 hours, and a 365-day year has 8,760 hours. Leap years have 8,784 hours. A 30-day month has 720 hours, while a 31-day month has 744 hours.

Hours Calculator showing start and end times with a 9 hour duration, plus 12 hour and 24 hour time formats.

Hours Calculator Use Cases

Use an Hours Calculator to total work time, prepare timesheets, check payroll hours, bill clients, track shifts, and monitor overtime.

Employees and Timesheets

Employees can enter daily start times, end times, and breaks to total weekly hours. This makes timesheets easier to check before submission.

Payroll Calculations

Payroll teams can total regular hours, break deductions, and overtime. Decimal hours also help transfer work time into payroll systems.

Freelancers and Contractors

Freelancers can track billable hours for each client or project. The result gives a clear record for invoices and payment requests.

Project Billing

Project teams can calculate the hours spent on client work. Use the total with an hourly rate to support accurate project billing.

Work Shift Calculations

Managers and workers can compare shift start and end times. Overnight shifts also need date changes so the total remains correct.

Overtime Tracking

Track total weekly hours and compare them with the regular work schedule. Extra hours can then be reviewed for overtime treatment.

Study and Activity Tracking

Students can track study sessions, exercise time, or other activities. Enter the start and end times to see the exact duration.

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Frequently Asked Questions

These answers explain decimal hours, employee breaks, Excel formulas, working hours, timesheets, UK workweeks, and next steps.