The subtract() method of Temporal.PlainTime instances returns a new Temporal.PlainTime object representing this time moved backward by a given duration (in a form convertible by Temporal.Duration.from()), wrapping around the clock if necessary.

If you want to subtract two times and get a duration, use since() or until() instead.

Syntax

subtract(duration)

Parameters

duration

A string, an object, or a Temporal.Duration instance representing a duration to subtract from this time. It is converted to a Temporal.Duration object using the same algorithm as Temporal.Duration.from().

Return value

A new Temporal.PlainTime object representing the time specified by the original PlainTime, minus the duration.

Subtracting a duration is equivalent to adding its negation, so all the same considerations apply.

Examples

Subtracting a duration

const start = Temporal.PlainTime.from("12:34:56");
const end = start.subtract({ hours: 1, minutes: 30 });
console.log(end.toString()); // 11:04:56

For more examples, see add().

Specifications

Browser compatibility

See also

• Temporal.PlainTime
• Temporal.Duration
• Temporal.PlainTime.prototype.add()
• Temporal.PlainTime.prototype.since()
• Temporal.PlainTime.prototype.until()