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