Calculate the time difference in hours using time zone in Javascript

Question

Calculate the time difference in hours using time zone in Javascript

Within my JavaScript object, I have the following information:

var dateobj = {
  date: "2020-12-21 03:31:06.000000",
  timezone: "Africa/Abidjan",
  timezone_type: 3
}

var date = new Date();
var options = {
  timeZone: dateobj.timezone
};
var curr_date = date.toLocaleString('en-US', options)
console.log(curr_date)
//I desire to 
//diff = curr_date - dateobj.date

I am looking to calculate the time difference in hours between the current date-time and the specified timezone. While I understand that toLocaleString() can be used to obtain the date-time string in a specific timezone, I am unsure how to determine the time difference. The provided code retrieves the current date time within the timezone, but how do I go about calculating the time difference in hours?

javascript datetime time

Answer 1

Answer №1

When dealing with dates in JavaScript, I often rely on a library known as date-fns (Date functions) to simplify the management of dates and time. Here's an example of how you can calculate the time difference in hours using date-fns.

const { differenceInHours } = require("date-fns"); 
const { zonedTimeToUtc } = require("date-fns-tz");

const timeData1 = {date: "2020-12-21 03:31:06.000000", timezone: "Africa/Abidjan", timezone_type: 3};
const timeData2 = {date: "2020-12-21 03:31:06.000000", timezone: "America/Los_Angeles", timezone_type: 3};

const t1 = zonedTimeToUtc(timeData1.date, timeData1.timezone);
const t2 = zonedTimeToUtc(timeData2.date, timeData2.timezone);

const diff = differenceInHours(t2, t1);

console.log(diff);
// => 8

Try it out:

Answer 2

When dealing with dates in JavaScript, I often rely on a library known as date-fns (Date functions) to simplify the management of dates and time. Here's an example of how you can calculate the time difference in hours using date-fns.

const { differenceInHours } = require("date-fns"); 
const { zonedTimeToUtc } = require("date-fns-tz");

const timeData1 = {date: "2020-12-21 03:31:06.000000", timezone: "Africa/Abidjan", timezone_type: 3};
const timeData2 = {date: "2020-12-21 03:31:06.000000", timezone: "America/Los_Angeles", timezone_type: 3};

const t1 = zonedTimeToUtc(timeData1.date, timeData1.timezone);
const t2 = zonedTimeToUtc(timeData2.date, timeData2.timezone);

const diff = differenceInHours(t2, t1);

console.log(diff);
// => 8

Try it out:

Answer 3

Answer №2

Returning with a hopefully improved response.

A similar method can be seen in this answer, where each date is converted using toLocaleString, a 'new Date()' instance is created, and then the two dates are subtracted. The result is then divided by 6e4 to obtain the difference in minutes.

For the given example, the approach would look something like this:

var dateobj = {
  date: "2020-12-21 03:31:06.000000",
  timezone: "Africa/Abidjan",
  timezone_type: 3
}

var date = new Date();
var options = {
  timeZone: dateobj.timezone
};

const curr_string = date.toLocaleString('en-US', options)
const orig_string = "12/21/2020, 03:31:06 AM"
const string1 = new Date(curr_string);
const string2 = new Date(orig_string);
console.log((string1.getTime() - string2.getTime()) / 6e4);

Answer 4

Returning with a hopefully improved response.

A similar method can be seen in this answer, where each date is converted using toLocaleString, a 'new Date()' instance is created, and then the two dates are subtracted. The result is then divided by 6e4 to obtain the difference in minutes.

For the given example, the approach would look something like this:

var dateobj = {
  date: "2020-12-21 03:31:06.000000",
  timezone: "Africa/Abidjan",
  timezone_type: 3
}

var date = new Date();
var options = {
  timeZone: dateobj.timezone
};

const curr_string = date.toLocaleString('en-US', options)
const orig_string = "12/21/2020, 03:31:06 AM"
const string1 = new Date(curr_string);
const string2 = new Date(orig_string);
console.log((string1.getTime() - string2.getTime()) / 6e4);

Calculate the time difference in hours using time zone in Javascript

Answer №1

Answer №2

Similar questions

pressing a button unrelated to the 'close' button still triggers the close event

The sweetalert 2 input field is unresponsive or disabled within a materializecss modal, making it impossible to type in

Adjusting the alignment of a facial image on Canvas by selecting specific click-points

When the user presses the enter key to submit data, the Ajax page reloads

When attempting to send an email using the emailjs.send function, an unexpected error occurred showing the URL https://api.emailjs.com/api/v1.0/email/send with a

Displaying Modal from a separate component

Finding common elements between two arrays through partial matching

What is the most effective method for incorporating multi-line breadcrumb links in a React application?

Using TypeScript to define callback functions within the Cordova.exec method

Leveraging Javascript/Jquery for numbering items in a list

Using the concept of method chaining in JavaScript, you can easily add multiple methods from

Go through each .md document, transform them into HTML format, and dispatch them

I encountered a TS error warning about a possible null value, despite already confirming that the value

Preserve the existing value and then check it against the updated value of a variable within JavaScript

The asynchronous callbacks or promises executing independently of protractor/webdriver's knowledge

Experiencing difficulties replicating two auto-scrolling divs

Struggling with converting 11-line toy neural network code into JavaScript

What is the best way to utilize multiple models under a single root in ReactJS?

Retrieve the subdomain from within the passport FacebookTokenStrategy and GoogleStrategy

What is the best way to ensure the remaining PHP script is executed after using json_encode()?