# Hour Countdown Calculator

With our hour countdown calculator, you can quickly obtain the hours between any two times.

If you've ever wondered **how many hours there are between two different times** or how many hours are left for a specific date, this tool can help immensely.

We've paired this calculator with a short text detailing:

- How to calculate hours between two dates;
- How many hours are there between 9 am and 4 pm; and
- When should you use this calculator.

## How do you calculate hours between two dates?

To calculate the hours between any two dates:

- Multiply the difference in days between the dates by
**24**. - Add this number to the difference between each day's hours using a
**24-hour format**. To find this difference, use the formula:

`hours difference = later day hours - earlier date hours`

.

This number can be negative. - The result is the time difference in hours.

If you want to know how to obtain the difference in days between the dates quickly, check our days between dates calculator 📅.

Let's take a look at some examples next.

## How many hours are there between 9 am and 4 pm?

**There are 7 hours between 09:00 A.M. and 04:00 P.M.** You can quickly obtain the hours between two times on the same day by subtracting the earlier hour from the later hour using a 24-hour format: `16 - 9 = 7`

.

If the dates were different, let's say **Aug 8 16:00** and **Dec 22 09:00**:

- According to our
**step-by-step**above, we would need to multiply the difference in days between them by**24**first. There are**136 days**between these dates, so:

`136 × 24 = 3264`

. - Now, for the difference in hours:

`later day hours - earlier date hours = 9 - 16 = -7`

. - By adding these results, we get the total hours between
**Aug 8 16:00**and**Dec 22 09:00**:

`3264 + (-7) = 3257`

.

Verify this result using our hour countdown calculator!

## When to use this hour countdown calculator

This tool can aid you in multiple instances, for example:

- Checking how many hours are left until you leave work to go back home to your dogs 🐕;
- Calculating the hours left until the next episode of your favorite show airs; or
- Obtaining the number of hours between any two events.

Give it a try! Input any two dates using the dropdown selectors, and our calculator will tell you exactly how many hours are between them.

## Other similar tools

Feel free to check these tools similar to our hour countdown calculator 🕑:

- Countdown calculator;
- Vacation countdown calculator;
- Retirement countdown calculator;
- Birthday countdown calculator;
- Time until calculator;
- Day countdown calculator;
- Days until calculator;
- Date countdown calculator;
- Wedding countdown calculator;
- Pregnancy countdown calculator;
- Calendar countdown calculator; and
- New years countdown calculator.

## FAQ

### How many hours are there in a week?

**168 hours**. Each day has **twenty-four hours** and a week has **seven days**. To find the total number of hours in a week, you need to multiply the number of days by the duration of each day:

`24 × 7 = 168`

.