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Calculators » Date & Time » Time card calculator

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate total hours worked on a project from a timesheet or time card record. This is especially useful for figuring out the billable hours of your work assignment.

Result window

To add hour and minutes to a given time, use clock time calculator.

To calculate hours worked, enter the start and the end time of each entry in the timesheet calculator; To add more records, use the "Add Row" button.

**Step I.** First we calculate time duration of all tasks in minutes. See the formula section on time difference calculator for details.

**Step II.** Next, we add up all the minutes from *Step I* and divide the total by 60 to find the hours worked. To find the time spent in *hours and minutes*, we use whole number division. Dividing the total minutes by 60, the quotient will yield the hours and the remainder will give the leftover minutes.

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