# Time Date Calculator Hours

Use this calculator to add up a time sheet or for time card labor hours. Enter only integers such as 1215 for 12:15 or 137 for 1:37. For a full time card use a Time Card Calculator. Enter start time and end time without '.' If you enter a single integer from 1 through 12 it will assume 1:00 through 12:00. Free date calculator computes the difference between two dates. It can also add to or subtract from a date. Both calculators can deal with business days and holidays. Learn more about the most common calendar system used today, or explore hundreds of other calculators addressing finance, math, fitness, health, and more.

Use the calculator below to find the hours, minutes, and seconds between two times.

## Time Between Two Dates

Use this time and date duration calculator to find out the number of days, hours, minutes, and seconds between the times on two different dates. To add or subtract time from a date, use the Time Calculator.

## Calculator For Date And Time

### Calculate the duration between two times

## Time Between Calculator

Calculating the duration between two times can be a little tricky depending on the numbers of minutes and seconds in the two times being compared. As an example, the following are the steps to determine the number of hours and minutes between two chosen times __within the same day__:

- First, identify the starting and an ending time. The goal is to subtract the starting time from the ending time under the correct conditions.
- If the times are not already in 24-hour time, convert them to 24-hour time. AM hours are the same in both 12-hour and 24-hour time. For PM hours, add 12 to the number to convert it to 24-hour time. For example, 1:00 PM would be 13:00 in 24-hour time.
- Determine whether the number of minutes is larger in the starting time or the ending time.
- If the ending time has a larger number of minutes: Subtract the starting time from the ending time as you would subtract normally, keeping the hours and minutes on the appropriate side of the ':', where hours are on the left, and minutes are on the right. For example:
13:57 – 9:22 4:35 - If the starting time has a larger number of minutes: Treat the hour and minute portion separately. Add 60 to the number of minutes in the ending time, and subtract 1 hour from the hour portion of the ending time. Then, subtract the minutes and the hours, keeping the result on the appropriate side of the ':' where hours are on the left, and minutes are on the right. For example:
13:57 – 9:58 ⇒ 12:117 – 9:58 3:59

- If the ending time has a larger number of minutes: Subtract the starting time from the ending time as you would subtract normally, keeping the hours and minutes on the appropriate side of the ':', where hours are on the left, and minutes are on the right. For example: