How Can I Create JavaScript Date Objects with Specific Time Zones?

Creating Dates with Specific Timezones

You have a web form with dropdowns for day, month, and year. When you use the JavaScript Date constructor with numbers, you get a Date object for your current timezone. This might not align with the intended timezone for your use case.

Instead of passing the date components individually to an AJAX method, you can create a Date object with a specific timezone.

To set the timezone of a Date object, you cannot use UTC in the constructor directly. However, you can use the .setUTCHours() method to modify the date and time. By setting all date components (date, month, year, hour, minute, second) based on UTC, you can create a Date object with the desired timezone.

For example, the following code creates a Date object for April 5th, 2023, at 5:00 AM in the GMT 1 timezone:

const xiYear = 2023;
const xiMonth = 3; // Months are 0-indexed, so March is 3
const xiDate = 5;
const xiHour = 5;
const xiMinute = 0;
const xiSecond = 0;

const gmt1Date = new Date(Date.UTC(xiYear, xiMonth, xiDate, xiHour, xiMinute, xiSecond));
console.log(gmt1Date);
// Output: Wed Apr 05 2023 05:00:00 GMT+0100 (Central European Standard Time)

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