Javascript date number of month

JavaScript Get Date Methods

In JavaScript, date objects are created with new Date() .

new Date() returns a date object with the current date and time.

Get the Current Time

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)

Note 1

The get methods above return Local time.

Universal time (UTC) is documented at the bottom of this page.

Note 2

The get methods return information from existing date objects.

In a date object, the time is static. The «clock» is not «running».

The time in a date object is NOT the same as current time.

The getFullYear() Method

The getFullYear() method returns the year of a date as a four digit number:

Examples

Warning !

Old JavaScript code might use the non-standard method getYear().

getYear() is supposed to return a 2-digit year.

getYear() is deprecated. Do not use it!

The getMonth() Method

The getMonth() method returns the month of a date as a number (0-11).

Note

In JavaScript, January is month number 0, February is number 1, .

Finally, December is month number 11.

Examples

Note

You can use an array of names to return the month as a name:

Examples

const months = [«January», «February», «March», «April», «May», «June», «July», «August», «September», «October», «November», «December»];

const d = new Date(«2021-03-25»);
let month = months[d.getMonth()];

const months = [«January», «February», «March», «April», «May», «June», «July», «August», «September», «October», «November», «December»];

const d = new Date();
let month = months[d.getMonth()];

The getDate() Method

The getDate() method returns the day of a date as a number (1-31):

Examples

The getHours() Method

The getHours() method returns the hours of a date as a number (0-23):

Examples

The getMinutes() Method

The getMinutes() method returns the minutes of a date as a number (0-59):

Examples

The getSeconds() Method

The getSeconds() method returns the seconds of a date as a number (0-59):

Examples

The getMilliseconds() Method

The getMilliseconds() method returns the milliseconds of a date as a number (0-999):

Examples

The getDay() Method

The getDay() method returns the weekday of a date as a number (0-6).

Note

In JavaScript, the first day of the week (day 0) is Sunday.

Some countries in the world consider the first day of the week to be Monday.

Examples

Note

You can use an array of names, and getDay() to return weekday as a name:

Examples

const days = [«Sunday», «Monday», «Tuesday», «Wednesday», «Thursday», «Friday», «Saturday»];

const d = new Date(«2021-03-25»);
let day = days[d.getDay()];

const days = [«Sunday», «Monday», «Tuesday», «Wednesday», «Thursday», «Friday», «Saturday»];

const d = new Date();
let day = days[d.getDay()];

The getTime() Method

The getTime() method returns the number of milliseconds since January 1, 1970:

Examples

The Date.now() Method

Date.now() returns the number of milliseconds since January 1, 1970.

Examples

Calculate the number of years since 1970/01/01:

const minute = 1000 * 60;
const hour = minute * 60;
const day = hour * 24;
const year = day * 365;

let years = Math.round(Date.now() / year);

Date.now() is a static method of the Date object.

You cannot use it on a date object like myDate.now() .

The syntax is always Date.now() .

UTC Date Get Methods

Method	Same As	Description
getUTCDate()	getDate()	Returns the UTC date
getUTCFullYear()	getFullYear()	Returns the UTC year
getUTCMonth()	getMonth()	Returns the UTC month
getUTCDay()	getDay()	Returns the UTC day
getUTCHours()	getHours()	Returns the UTC hour
getUTCMinutes()	getMinutes()	Returns the UTC minutes
getUTCSeconds()	getSeconds()	Returns the UTC seconds
getUTCMilliseconds()	getMilliseconds()	Returns the UTC milliseconds

UTC methods use UTC time (Coordinated Universal Time).

UTC time is the same as GMT (Greenwich Mean Time).

The difference between Local time and UTC time can be up to 24 hours.

The getTimezoneOffset() Method

The getTimezoneOffset() method returns the difference (in minutes) between local time an UTC time:

Example

Complete JavaScript Date Reference

For a complete Date reference, go to our:

The reference contains descriptions and examples of all Date properties and methods.

Источник

Date.prototype.getMonth()

The getMonth() method of Date instances returns the month for this date according to local time, as a zero-based value (where zero indicates the first month of the year).

Try it

Syntax

Return value

An integer, between 0 and 11, representing the month for the given date according to local time: 0 for January, 1 for February, and so on. Returns NaN if the date is invalid.

Description

The return value of getMonth() is zero-based, which is useful for indexing into arrays of months, for example:

const valentines = new Date("1995-02-14"); const month = valentines.getMonth(); const monthNames = ["January", "February", "March" /* , … */]; console.log(monthNames[month]); // "February" 

However, for the purpose of internationalization, you should prefer using Intl.DateTimeFormat with the options parameter instead.

const options =  month: "long" >; console.log(new Intl.DateTimeFormat("en-US", options).format(valentines)); // "February" console.log(new Intl.DateTimeFormat("de-DE", options).format(valentines)); // "Februar" 

Examples

Using getMonth()

The month variable has value 11 , based on the value of the Date object xmas95 .

const xmas95 = new Date("1995-12-25T23:15:30"); const month = xmas95.getMonth(); console.log(month); // 11 

Specifications

Browser compatibility

BCD tables only load in the browser

See also

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Источник

JavaScript Date getMonth()

ES1 (JavaScript 1997) is fully supported in all browsers:

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