Temporal.PlainTime.prototype.nanosecond

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The nanosecond accessor property of Temporal.PlainTime instances returns a integer from 0 to 999 representing the nanosecond (10-9 second) component of this time.

The set accessor of nanosecond is undefined. You cannot change this property directly. Use the with() method to create a new Temporal.PlainTime object with the desired new value.

Examples

Using nanosecond

const time = Temporal.PlainTime.from("12:34:56");
console.log(time.nanosecond); // 0

const time2 = Temporal.PlainTime.from("12:34:56.123456789");
console.log(time2.nanosecond); // 789

Changing nanosecond

const time = Temporal.PlainTime.from("12:34:56");
const newTime = time.with({ nanosecond: 100 });
console.log(newTime.toString()); // 12:34:56.0000001

You can also use add() or subtract() to move a certain number of nanoseconds from the current time.

const time = Temporal.PlainTime.from("12:34:56");
const newTime = time.add({ nanoseconds: 100 });
console.log(newTime.toString()); // 12:34:56.0000001

Specifications

Specification
Temporal proposal
# sec-get-temporal.plaintime.prototype.nanosecond

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
nanosecond No No No No preview No No No No No No 1.40 No

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/PlainTime/nanosecond