Date Javascript

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There is no way to escape time, especially in programming. Just as we rely on clocks to keep track these days, so programs use time tracking tools to know what needs to happen and when.

Different applications need to keep track of time. A blog application must remember when a post was created, then a calendar application shows scheduled events.

In this guide, we discuss how to work with date and time in JavaScript. We’ll walk you through some examples to illustrate how to work with these tools.

What is JavaScript Object Date ?

To work with time in JavaScript, we use the date object. This is a special object which stores the date and time. Additionally, the Date object includes a number of methods that we can use to retrieve a particular date and time.

The date object looks like this one.

in this tutorial, I notice the date is in all caps. This is because the date is a built-in JavaScript object. You should pull the word working date with the date subject.

How to use the Date object

Without any value, the Date object tells us the date and time. It is calculated based on operating system settings and taking your time zone into account

We can use the Date object to retrieve the current date, like this:.

Our code returns a Date object that contains the following values:

As you can see , this article was written in UK on June 24, 2020, as shown in our timestamp. The beauty of the Date object is that it returns data in a human readable date format so it’s easy for us to understand

Retrieve a timestamp using the date

The above code is human readable , but there is a catch: JavaScript works differently. Interpret dates using a Unix timestamp. Unix timestamps keep track of how many seconds have passed since January 1, 1970. This is when Unix time started.

To retrieve the current time as a timestamp, you can use the getTime () method:

Our code returns 1592992393313, a number that can be interpreted by JavaScript.

Creating a Date object

The default value for the data object is the date and time. You can change it to create a date based on a specific timestamp or date and time.

You can do this by specifying a timestamp, a date string, or a set of numbers that correspond to the current date and time.

Suppose we want to create a timestamp for January 1, 2021. we could do it using this code:

Our code returns: Fri January 01, 2021 12:00:00 GMT + 0000 (Greenwich Mean Time)

may also have created this timestamp using these lines of code:

Our code returns:

All of these methods create the same date object.

Retrieving the Date

The Date object comes with a number of built-in methods for accessing the given date information. The methods for retrieving date information begin with get. Here is a reference list:

let’s say we want find out what time it is now we could do it using this code:.

Our code returns 11 This shows us that it currently is. 11 hours of the day

These functions are useful because they help us extract specific information about the day, we don’t have to worry about manipulating strings; one can just use the get to find out more the current time.

You can retrieve a timestamp using universal time (UTC) by appending UTC between the word get and the date value By default, the Date object returns information in the local time zone and a user. If you are working with users in multiple time zones, it is often best to use UTC to easily track time events.

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