Hour Calculator

Hour Calculator


Hours, Minutes:

Decimal Hours:

This hours calculator lets you calculate the time of your work hours. By putting the start time and end time, along with breaks taken, you can instantly know the total time worked in the form of hours, minutes, and decimal hours. Alternatively, you can calculate the time without putting any break interval in between.


This tool is helpful to know the hours you’ve worked on a special project, making it easy to log your work accurately.

For freelancers or contractors who bill clients based on hours worked, this calculator can provide accurate time measurements for invoicing.

By using the option of break, you can easily see exactly how much time you truly spend on tasks. This is really handy when breaks are subtracted from your total work time.

It could be helpful for factory managers to calculate the employee working hours and track the hourly salary.

If you are a student, you can use this tool to plan your routine educational activities.

Digital Time to Decimal Hours:

Digital time is usually represented in hours and minutes, like “2 hours and 30 minutes.”  To convert this to decimal hours, divide the minutes by 60 (as there are 60 minutes in an hour) and then add the result to the hours.


To convert 2 hours and 30 minutes:

Step1:  Divide 30 minutes by 60: 30 / 60 = 0.5

Step2:  Add the result to 2 hours: 2 + 0.5 = 2.5 decimal hours

Decimal Hours to Digital Time

Decimal hours represent time as a fraction of an hour. 


To convert 3.75 decimal hours:

Step1:  Whole number part is 3 hours.

Step2:  Decimal part is 0.75.

Step3:  Multiply 0.75 by 60.  0.75 * 60 = 45 minutes

Step4:  The result is 3 hours and 45 minutes.

Converting between these two formats is useful when you want to represent time in a way that’s most appropriate for your needs. Decimal hours are often used for calculations, while digital time is more easy for understanding the time duration.

Keep in mind that this conversion assumes a 24-hour clock format.

AM and PM

AM and PM are short terms we use to show different parts of the 12-hour clock. “AM” stands for “ante meridiem,” which means “before noon.” It is the time from midnight until just before noon. “PM” stands for “post meridiem,” which means “after noon.” It shows the time from noon until almost midnight.

When talking about time, if you see something like “10:00 AM,” it means 10 o’clock in the morning, before noon. On the other hand, “2:00 PM” means 2 o’clock in the afternoon..

AM and PM are really helpful because they stop us from getting mixed up between morning and afternoon times on the 12-hour clock. Even though the 24-hour clock is used worldwide and doesn’t need AM and PM, the 12-hour clock is common in English-speaking places.

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