JavaScript: Get Timezone

JavaScript Datetime: Exercise-37 with Solution

Get Timezone

Write a JavaScript function to get the Timezone.

Test Data:
dt = new Date();
console.log(seconds_with_leading_zeros(dt));
"India Standard Time"

Sample Solution:

JavaScript Code:

// Define a function seconds_with_leading_zeros that takes a Date object dt as input
function seconds_with_leading_zeros(dt) 
{ 
  // Retrieve the seconds component of the current date and time and return it
  // This is done by converting the current date to a string (new Date().toString()), 
  // then using a regular expression to extract the seconds component
  return /\((.*)\)/.exec(new Date().toString())[1];
}

// Create a new Date object representing the current date and time
dt = new Date(); 
// Output the seconds component of the current date and time
console.log(seconds_with_leading_zeros(dt)); 

// Create a new Date object representing November 1, 1989
dt = new Date(1989, 10, 1); 
// Output the seconds component of the date November 1, 1989
console.log(seconds_with_leading_zeros(dt));

Output:

India Standard Time
India Standard Time

Explanation:

In the exercise above,

• The code defines a function named "seconds_with_leading_zeros()" that takes a Date object "dt" as input.
• Inside the seconds_with_leading_zeros function:
• It creates a new Date object representing the current date and time using 'new Date()'.
• It converts the current date object to a string representation using 'new Date().toString()'.
• It uses a regular expression (/\((.*)\)/) to extract the portion of the string enclosed in parentheses, which typically represents the timezone offset.
• Finally, it returns the extracted portion, which should contain the seconds component of the current date and time.
• After defining the function, the code creates a new Date object "dt" representing the current date and time using 'new Date()'. It then calls the "seconds_with_leading_zeros()" function with this Date object and outputs the result (the seconds component of the current date and time) to the console.
• Next, the code creates another new Date object "dt" representing November 1, 1989, using 'new Date(1989, 10, 1)'. It again calls the "seconds_with_leading_zeros()" function with this Date object and outputs the result to the console.

Flowchart:

Live Demo:

See the Pen JavaScript - Get Timezone-date-ex-37 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript function that retrieves the timezone name from a Date object's string representation.
• Write a JavaScript function that uses Intl.DateTimeFormat to extract and return the full timezone name.
• Write a JavaScript function that converts a Date to a locale string and parses out the timezone information.
• Write a JavaScript function that handles cases where the timezone is not available and returns a default value.

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