Convert Milliseconds to Seconds in Python

What is Milliseconds?

The Milliseconds is a smaller unit of time used for problems where precise time calculations are desired. We can easily convert seconds to milliseconds using Python. In this article, we will learn how to do so in Python. This is useful in many applications, such as video editing, data analysis, and real-time processing.

Problem Description

We are given time input in milliseconds and must convert it into seconds. In this problem, we are going to learn how we can convert milliseconds to seconds in Python. The formula for converting milliseconds to seconds:

seconds = 1000 / milliseconds

Example Scenario 1

Let us consider some example scenarios, where the given value is 3000. We know that 1 second = 1000/milliseconds, we calculate: 3000/1000 = 3 seconds.

Input: 3000
Output: 3

Example Scenario 2

Similarly, if 500 is the input value, since 1 second = 1000/milliseconds, the resultant value would be 0.5.

Input: 500
Output: 0.5

In this approach, we use the direct formula to convert the given input of time in milliseconds to seconds. For converting milliseconds into seconds we divide the given milliseconds by 1000 because we know that 1 second = 1000/milliseconds. After converting the unit of time in seconds we print the output.

Steps for Implementation:

• We take input of time in milliseconds units.
• Now we use the direct formula to convert milliseconds into seconds: second = 1000/milliseconds
• After applying the formula, we print the output.

Example

milliseconds = 5000 
seconds = milliseconds / 1000
print(f"{milliseconds} milliseconds is equal to {seconds} seconds.");

Output

5000 milliseconds is equal to 5 seconds.

• Time Complexity: O(1), constant time
• Space Complexity: O(1), constant space

Using Custom Function

The logic of this approach is the same as the above approach. When we use function we can use code any number of times as function makes code reusable. In this approach, we use the function which takes a parameter, milliseconds. Inside the function, we calculate the seconds using the formula: 1 seconds = milliseconds / 1000. After calculating time in seconds, print the output.

Steps For Implementation:

• Create a function that takes milliseconds as the input parameter.
• Inside the function, use the formula to calculate seconds: seconds = milliseconds / 1000. This function returns seconds unit of time.
• Call the function and display the output.

Example

def convert_milliseconds_to_seconds(milliseconds):
    seconds = milliseconds / 1000
    return seconds
milliseconds = 3000
result = convert_milliseconds_to_seconds(milliseconds)
print(f"{milliseconds} milliseconds is {result} seconds")
milliseconds = 500
result = convert_milliseconds_to_seconds(milliseconds)
print(f"{milliseconds} milliseconds is {result} seconds")
milliseconds = 5400
result = convert_milliseconds_to_seconds(milliseconds)
print(f"{milliseconds} milliseconds is {result} seconds")
milliseconds = 0
result = convert_milliseconds_to_seconds(milliseconds)
print(f"{milliseconds} milliseconds is {result} seconds")

Output

3000 milliseconds is 3 seconds
500 milliseconds is 0.5 seconds
5400 milliseconds is 5.4 seconds
0 milliseconds is 0 seconds

• Time Complexity: O(1), constant time as a function performs only a single operation.
• Space Complexity: O(1), constant space as we store only a single variable.