Date object by JavaScript!!!
In JavaScript, date objects are created with new Date().
new Date() returns a date object with the current date and time.
Creating Date Objects
Date objects are created with the new Date() constructor.
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)
const d = new Date("October 13, 2014 11:13:00");
const d = new Date("2024-01-25");
const d = new Date(2018, 11, 24, 10, 33, 30, 0);
There are generally 3 types of JavaScript date input formats:
| Type | Example |
| ISO Date | "2015-03-25" (The International Standard) |
| Short Date | "03/25/2015" |
| Long Date | "Mar 25 2015" or "25 Mar 2015" |
Date Input - Parsing Dates
If you have a valid date string, you can use the Date.parse() method to convert it to
milliseconds.
Date.parse() returns the number of milliseconds between the date and January 1, 1970:
Example
let msec = Date.parse("Feb 1, 2024");
console.log(msec);
You can then use the number of milliseconds to convert it to a date object:
const d = new Date(msec);
console.log(d);
Get the Current Time
const date = new Date();
Date Get Methods
| Method | Description |
| getFullYear() | Get year as a four digit number (yyyy) |
| getMonth() | Get month as a number (0-11) |
| getDate() | Get day as a number (1-31) |
| getDay() | Get weekday as a number (0-6) |
| getHours() | Get hour (0-23) |
| getMinutes() | Get minute (0-59) |
| getSeconds() | Get second (0-59) |
| getMilliseconds() | Get millisecond (0-999) |
| getTime() | Get time (milliseconds since January 1, 1970) |
Date get method
Set Date Methods
Set Date methods are used for setting a part of a date:
| Method | Description |
| setDate() | Set the day as a number (1-31) |
| setFullYear() | Set the year (optionally month and day) |
| setHours() | Set the hour (0-23) |
| setMilliseconds() | Set the milliseconds (0-999) |
| setMinutes() | Set the minutes (0-59) |
| setMonth() | Set the month (0-11) |
| setSeconds() | Set the seconds (0-59) |
| setTime() | Set the time (milliseconds since January 1, 1970) |