What Is the Hours Calculator?
The hours calculator is an online time calculator that helps you calculate hours between two times, sum two or more time periods, convert between time units (example: minutes to hours), calculate work hours in a week, and add or subtract time from any date and time.
It is similar to our date calculator, but it focuses on time values instead of dates.
How to Use the Hours Calculator
The hours calculator has six different operations to choose from. Pick the one you need and just follow these steps.
Measure time between two times
Start by selecting "Time Duration" from the operation menu to measure time between any two points. Next, pick your time format (Input type). Fill in your start and end times (Click on "Now" to pick the current time). If you have a break, enter it in minutes, which will be deducted from your total hours. Click "Calculate Time Duration" to see your results. You will see the duration in hours and minutes, decimal hours, total minutes, and total seconds.
Sum multiple times
Pick "Sum Hours" from the menu. You will see fields for two time periods. Fill in the hours, minutes and seconds for each one. If you need more than two, hit "Add More Inputs" to add as many as you want. When you're ready, click "Sum the Total" to get your answer in human readable format.
Convert to hours
Select "Convert to Hours" from the operations. Enter the value you want to convert, then pick what you're converting from (minutes is already selected). Choose what to convert to (hours is the default). Click "Convert" and you're done. Note that this works with seconds, minutes, hours, days, weeks, and years.
Calculate work hours and minutes (time card)
Choose "Work Hours" to see a weekly timesheet. For each day you worked, add your start and end times. If you took a break, add those minutes too (this is optional though). Your daily totals appear automatically on the right, and your weekly total shows at the bottom.
Add hours/minutes to a time
Select "Add Hours" from the menu. Pick whether you're working with just time or date and time. Enter your start time (or click "Now" for the current time). Then enter the number of hours and minutes you want to add. Click "Calculate New Time" to see the future time.
Subtract hours/minutes from a time
Choose "Subtract Hours" from the operations. Pick your input type (Time only or Date and time). Enter your starting time or use "Now" for right now. Add the hours and minutes you want to take away. Click "Calculate New Time" to see the earlier time.