Date.prototype.toTemporalInstant()
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The toTemporalInstant() method of Date instances returns a new Temporal.Instant object with the same epochMilliseconds value as this date's timestamp.
Use this method to convert legacy Date values to the Temporal API, then further convert it to other Temporal classes as necessary.
Syntax
js
toTemporalInstant()
Parameters
None.
Return value
A new Temporal.Instant object with the same epochMilliseconds value as this date's timestamp. Its microsecond and nanosecond components are always 0.
Exceptions
RangeError-
Thrown if the date is invalid (it has a timestamp of
NaN).
Examples
Using toTemporalInstant()
js
const legacyDate = new Date("2021-07-01T12:34:56.789Z");
const instant = legacyDate.toTemporalInstant();
// Further convert it to other objects
const zdt = instant.toZonedDateTimeISO("UTC");
const date = zdt.toPlainDate();
console.log(date.toString()); // 2021-07-01
Specifications
| Specification |
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| Temporal # sec-date.prototype.totemporalinstant |
Browser compatibility
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toTemporalInstant
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- In development. Supported in a pre-release version.
- In development. Supported in a pre-release version.
- No support
- No support
- See implementation notes.