## How Long Until 11:25 ?

## Countdown Timer

Enter a custom date and time:

### Formulas Explanations:

#### Calculating the Time Difference:

To determine how much time is left until the target date and time, we need to find the difference between the current time and the target time:

**timeDifference = targetTime – currentTime**

– **targetTime**: The time the user inputs (in milliseconds since the epoch).

– **currentTime**: The current time when the countdown is calculated (also in milliseconds).

#### Calculating Days, Hours, Minutes, and Seconds:

Once we have the total time difference in milliseconds, we can calculate the days, hours, minutes, and seconds remaining.

##### Days:

**days = ⌊ timeDifference / (1000 * 60 * 60 * 24) ⌋**

This formula divides the total milliseconds by the number of milliseconds in a day to get the total number of full days remaining.

##### Hours:

**hours = ⌊ (timeDifference % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60) ⌋**

This formula calculates the remaining hours by first getting the modulus of the time difference with respect to the number of milliseconds in a day, then dividing by the number of milliseconds in an hour.

##### Minutes:

**minutes = ⌊ (timeDifference % (1000 * 60 * 60)) / (1000 * 60) ⌋**

This formula calculates the remaining minutes using the modulus of the time difference with respect to the number of milliseconds in an hour.

##### Seconds:

**seconds = ⌊ (timeDifference % (1000 * 60)) / 1000 ⌋**

This formula calculates the remaining seconds by taking the modulus of the time difference with respect to the number of milliseconds in a minute.

#### Example Calculation:

Suppose the target time is set for **December 31, 2024, 11:25 AM**, and the current time is **October 26, 2024, 12:00 PM**.

1. Calculate the time difference: **timeDifference = targetTime – currentTime**

2. Calculate days: **days = ⌊ timeDifference / (1000 * 60 * 60 * 24) ⌋**

3. Calculate hours: **hours = ⌊ (timeDifference % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60) ⌋**

4. Calculate minutes: **minutes = ⌊ (timeDifference % (1000 * 60 * 60)) / (1000 * 60) ⌋**

5. Calculate seconds: **seconds = ⌊ (timeDifference % (1000 * 60)) / 1000 ⌋**

This process gives the user a complete breakdown of the time remaining until the specified date and time.

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