JavaScript: swatch Internet time

JavaScript Datetime: Exercise-32 with Solution

Swatch Internet Time

Write a JavaScript function to swatch Internet time (000 through 999).

Test Data :
dt = new Date(1989, 10, 1);
console.log(internet_time(dt));
812

Sample Solution:

JavaScript Code:

// Define a JavaScript function called internet_time with parameter dt (date)
function internet_time(dt) 
{ 
  // Calculate the Internet time (Swatch Internet Time) based on the provided date
  // The formula involves dividing the UTC hours, minutes, and seconds by their respective factors and then multiplying by 1000/24 to get the time in beats
  return Math.floor((((dt.getUTCHours() + 1) % 24) + dt.getUTCMinutes() / 60 + dt.getUTCSeconds() / 3600) * 1000 / 24);
}

// Create a new Date object representing the current date
dt = new Date(); 
// Output the Internet time for the current date
console.log(internet_time(dt)); 

// Create a new Date object representing November 1, 1989
dt = new Date(1989, 10, 1); 
// Output the Internet time for November 1, 1989
console.log(internet_time(dt));

Output:

430
812

Explanation:

In the exercise above,

• The code defines a JavaScript function named "internet_time()" with one parameter 'dt', representing a Date object.
• Inside the internet_time function:
• It calculates the Internet time (also known as Swatch Internet Time) based on the provided UTC time.
• The calculation involves:
• Adding 1 to the UTC hours, taking the modulus of 24 (to ensure it stays within the range of 0-23).
• Adding the UTC minutes divided by 60 (converted to decimal) and the UTC seconds divided by 3600 (converted to decimal).
• Multiplying the result by 1000/24 to convert it to beats (where 1000 beats correspond to 24 hours).
• The code then demonstrates the usage of the "internet_time()" function:
• It creates a new Date object "dt" representing the current date using 'new Date()'.
• It calculates and outputs the Internet time for the current date by calling the "internet_time()" function with 'dt' and logging the result to the console.
• It creates another new Date object 'dt' representing November 1, 1989, using 'new Date(1989, 10, 1)'.
• It calculates and outputs the Internet time for November 1, 1989, by calling the "internet_time()" function with 'dt' and logging the result to the console.

Flowchart:

Live Demo:

See the Pen JavaScript - swatch Internet time-date-ex-32 by w3resource (@w3resource) on CodePen.

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