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Date.prototype.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.

Try it

Syntax

toISOString()

Parameters

None.

Return value

A string representing the given date in the date time string format according to universal time. It's the same format as the one required to be recognized by Date.parse().

Exceptions

RangeError: Thrown if the date is invalid or if it corresponds to a year that cannot be represented in the date string format.

Examples

Using toISOString()

const d = new Date(0);

console.log(d.toISOString()); // "1970-01-01T00:00:00.000Z"

Specifications

Specification
ECMAScript Language Specification # sec-date.prototype.toisostring

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`toISOString`	3	12	1	10.5	4	18	4	11	3.2	1.0	≤37	1.0	0.10.0