JavaScript - Date and Math Object

Date Object :

The Date object works with dates and times. Date objects are created with new Date().
Eg : 
    < !DOCTYPE html>
    < html>
    < body>

    < h1>JavaScript Dates< /h1>
    < h2>Using new Date()< /h2>
    < p id="demo">< /p>
    < p id="demo1">< /p>

    < script>
        const d = new Date();           //gives curent date and time
        document.getElementById("demo").innerHTML = d;

        const d1 = new Date("2024-10-09");  //gives date value
        document.getElementById("demo1").innerHTML = d1;
    < /script>

    < /body>
    < /html>
Output :

JavaScript Dates

Using new Date()

Wed Oct 09 2024 17:59:12 GMT+0530 (India Standard Time)

Wed Oct 09 2024 05:30:00 GMT+0530 (India Standard Time)



Creating Date Objects :
Date objects are created with the new Date() constructor.There are 9 ways to create a new date object: 
    new Date()
    new Date(date string)

    new Date(year,month)
    new Date(year,month,day)
    new Date(year,month,day,hours)
    new Date(year,month,day,hours,minutes)
    new Date(year,month,day,hours,minutes,seconds)
    new Date(year,month,day,hours,minutes,seconds,ms)

    new Date(milliseconds)
new Date(year, month, ...)
new Date(year, month, ...) creates a date object with a specified date and time. 7 numbers specify year, month, day, hour, minute, second, and millisecond (in that order): 
    < !DOCTYPE html>
    < html>
    < body>

    < h2>JavaScript new Date()< /h2>
    < p>Using new Date(7 numbers), creates a new date object with the specified date and time:< /p>
    < p id="demo">< /p>

    < script>
        const d = new Date(2024, 10, 09, 06, 02, 30, 0);
        document.getElementById("demo").innerHTML = d;
    < /script>

    <   /body>
    <   /html>
Output :
new Date(milliseconds) : new Date(milliseconds) creates a new date object as milliseconds plus zero time: 





JavaScript Dates


Using new Date()



1728500000000 milliseconds from January 01 1970 UTC is:
(JS - Comments, Variables)