Widely availableSupported across all major browsers. Safe to use in production.
Primitive types Widely available

Date

The Date object represents a single moment in time.

Primitive types

Overview

The Date object represents a single moment in time.

Browser support

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Date
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Date.@@toPrimitive

The [Symbol.toPrimitive]() method of Date instances returns a primitive value representing this date. It may either be a string or a number, depending on the hint given.
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Date.Date

The Date() constructor creates Date objects. When called as a function, it returns a string representing the current time.
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Date.UTC

The Date.UTC() static method accepts parameters representing the date and time components similar to the Date constructor, but treats them as UTC. It returns the number of milliseconds since January 1, 1970, 00:00:00 UTC.
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Date.UTC.optional monthIndex

`monthIndex` defaults to 0
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≤15
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Date.getDate

The getDate() method of Date instances returns the day of the month for this date according to local time.
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Date.getDay

The getDay() method of Date instances returns the day of the week for this date according to local time, where 0 represents Sunday. For the day of the month, see Date.prototype.getDate().
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Date.getFullYear

The getFullYear() method of Date instances returns the year for this date according to local time.
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Date.getHours

The getHours() method of Date instances returns the hours for this date according to local time.
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Date.getMilliseconds

The getMilliseconds() method of Date instances returns the milliseconds for this date according to local time.
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Date.getMinutes

The getMinutes() method of Date instances returns the minutes for this date according to local time.
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Date.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).
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Date.getSeconds

The getSeconds() method of Date instances returns the seconds for this date according to local time.
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Date.getTime

The getTime() method of Date instances returns the number of milliseconds for this date since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC.
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Date.getTimezoneOffset

The getTimezoneOffset() method of Date instances returns the difference, in minutes, between this date as evaluated in the UTC time zone, and the same date as evaluated in the local time zone.
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Date.getUTCDate

The getUTCDate() method of Date instances returns the day of the month for this date according to universal time.
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Date.getUTCDay

The getUTCDay() method of Date instances returns the day of the week for this date according to universal time, where 0 represents Sunday.
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Date.getUTCFullYear

The getUTCFullYear() method of Date instances returns the year for this date according to universal time.
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Date.getUTCHours

The getUTCHours() method of Date instances returns the hours for this date according to universal time.
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Date.getUTCMilliseconds

The getUTCMilliseconds() method of Date instances returns the milliseconds for this date according to universal time.
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Date.getUTCMinutes

The getUTCMinutes() method of Date instances returns the minutes for this date according to universal time.
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Date.getUTCMonth

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

The getUTCSeconds() method of Date instances returns the seconds in the specified date according to universal time.
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Date.now

The Date.now() static method returns the number of milliseconds elapsed since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC.
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Date.parse

The Date.parse() static method parses a string representation of a date, and returns the date's timestamp.
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Date.parse.iso 8601

ISO 8601 format
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Date.setDate

The setDate() method of Date instances changes the day of the month for this date according to local time.
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Date.setFullYear

The setFullYear() method of Date instances changes the year, month, and/or day of month for this date according to local time.
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Date.setHours

The setHours() method of Date instances changes the hours, minutes, seconds, and/or milliseconds for this date according to local time.
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Date.setMilliseconds

The setMilliseconds() method of Date instances changes the milliseconds for this date according to local time.
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Date.setMinutes

The setMinutes() method of Date instances changes the minutes for this date according to local time.
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Date.setMonth

The setMonth() method of Date instances changes the month and/or day of the month for this date according to local time.
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Date.setSeconds

The setSeconds() method of Date instances changes the seconds and/or milliseconds for this date according to local time.
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Date.setTime

The setTime() method of Date instances changes the timestamp for this date, which is the number of milliseconds since the epoch, defined as the midnight at the beginning of January 1, 1970, UTC.
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Date.setUTCDate

The setUTCDate() method of Date instances changes the day of the month for this date according to universal time.
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Date.setUTCFullYear

The setUTCFullYear() method of Date instances changes the year for this date according to universal time.
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Date.setUTCHours

The setUTCHours() method of Date instances changes the hours, minutes, seconds, and/or milliseconds for this date according to universal time.
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Date.setUTCMilliseconds

The setUTCMilliseconds() method of Date instances changes the milliseconds for this date according to universal time.
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Date.setUTCMinutes

The setUTCMinutes() method of Date instances changes the minutes for this date according to universal time.
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Date.setUTCMonth

The setUTCMonth() method of Date instances changes the month and/or day of the month for this date according to universal time.
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Date.setUTCSeconds

The setUTCSeconds() method of Date instances changes the seconds and/or milliseconds for this date according to universal time.
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Date.toDateString

The toDateString() method of Date instances returns a string representing the date portion of this date interpreted in the local timezone.
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Date.toISOString

The toISOString() method of Date instances returns a string representing this date in the date time string format, a simplified format based on ISO 8601, which is always 24 or 27 characters long (YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ, respectively). The timezone is always UTC, as denoted by the suffix Z.
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3.2
Date.toJSON

The toJSON() method of Date instances returns a string representing this date in the same ISO format as Date/toISOString.
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3.2
Date.toString

The toString() method of Date instances returns a string representing this date interpreted in the local timezone.
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Date.toTimeString

The toTimeString() method of Date instances returns a string representing the time portion of this date interpreted in the local timezone.
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Date.toUTCString

The toUTCString() method of Date instances returns a string representing this date in the RFC 7231 format, with negative years allowed. The timezone is always UTC. toGMTString() is an alias of this method.
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Date.valueOf

The valueOf() method of Date instances returns the number of milliseconds for this date since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC.
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1+Supported (version) Not supported ※Has note Sub-feature descriptions sourced from MDN Web Docs (CC BY-SA 2.5)

Syntax

JAVASCRIPT 
const now = new Date();
now.getFullYear();  // 2026
now.getMonth();     // 3 (zero-based, April)
now.toLocaleDateString('ja-JP'); // '2026/4/6'

// Generated from an ISO 8601 string
const date = new Date('2026-04-06T12:00:00Z');

Live demo

Real-timeclock

currenttime 1 per and to read, Japan. shape notation in display..

PreviewFullscreen

Weekday. Automatic Detection

specific. Date(example: 2026-04-06) that weekday or check..

PreviewFullscreen

Date. Differencecalculation

from the end of the year(1231) to and exists or calculation..

PreviewFullscreen

Use cases

  • Using Date

    The Date object represents a single moment in time.

Cautions

  • No specific concerns. Stable across all major browsers.

Accessibility

  • When updating the DOM dynamically, announce important changes to assistive technology with aria-live regions.

Related links

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