Temporal.Instant.from()

The Temporal.Instant.from() static method creates a new Temporal.Instant object from another Temporal.Instant object, or an RFC 9557 string.

Syntax#

Temporal.Instant.from(info)

Parameters#

• info
• : One of the following:
  • A {{jsxref("Temporal.Instant")}} instance, which creates a copy of the instance.
  • An RFC 9557 string containing a date, time, and time zone offset. The time zone name is ignored; only the offset is used.

Return value#

A new Temporal.Instant object representing the instant in time specified by info.

Exceptions#

• {{jsxref("TypeError")}}
• : Thrown if info is not a Temporal.Instant instance or a string.
• {{jsxref("RangeError")}}
• : Thrown in one of the following cases:
  • The string is not a valid RFC 9557 string.
  • The info is not in the representable range, which is ±10⁸ days, or about ±273,972.6 years, from the Unix epoch.

Examples#

Creating an instant from a string#

const instant = Temporal.Instant.from("1970-01-01T00Z");
console.log(instant.toString()); // 1970-01-01T00:00:00Z

const instant2 = Temporal.Instant.from("1970-01-01T00+08:00");
console.log(instant2.toString()); // 1969-12-31T16:00:00Z

// America/New_York is UTC-5 in January 1970, not UTC+8
const instant3 = Temporal.Instant.from("1970-01-01T00+08:00[America/New_York]");
console.log(instant3.toString()); // 1969-12-31T16:00:00Z; the time zone name is ignored

Creating an instant from another instant#

const instant = Temporal.Instant.from("1970-01-01T00Z");
const instant2 = Temporal.Instant.from(instant);
console.log(instant2.toString()); // 1970-01-01T00:00:00Z

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Temporal.Instant")}}
• {{jsxref("Temporal/Instant/fromEpochMilliseconds", "Temporal.Instant.fromEpochMilliseconds()")}}
• {{jsxref("Temporal/Instant/fromEpochNanoseconds", "Temporal.Instant.fromEpochNanoseconds()")}}