The toJSON() method of Temporal.PlainTime instances returns a string representing this time in the same RFC 9557 format as calling toString(). It is intended to be implicitly called by JSON.stringify().

Syntax

toJSON()

Parameters

None.

Return value

A string representing the given time in the RFC 9557 format.

Description

The toJSON() method is automatically called by JSON.stringify() when a Temporal.PlainTime object is stringified. This method is generally intended to, by default, usefully serialize Temporal.PlainTime objects during JSON serialization, which can then be deserialized using the Temporal.PlainTime.from() function as the reviver of JSON.parse().

Examples

Using toJSON()

const time = Temporal.PlainTime.from({ hour: 12, minute: 34, second: 56 });
const timeStr = time.toJSON(); // '12:34:56'
const t2 = Temporal.PlainTime.from(timeStr);

JSON serialization and parsing

This example shows how Temporal.PlainTime can be serialized as JSON without extra effort, and how to parse it back.

const time = Temporal.PlainTime.from({ hour: 12, minute: 34, second: 56 });
const jsonStr = JSON.stringify({ time }); // '{"time":"12:34:56"}'
const obj = JSON.parse(jsonStr, (key, value) => {
  if (key === "time") {
    return Temporal.PlainTime.from(value);
  }
  return value;
});

Specifications

Browser compatibility

See also

• Temporal.PlainTime
• Temporal.PlainTime.from()
• Temporal.PlainTime.prototype.toString()
• Temporal.PlainTime.prototype.toLocaleString()