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javascript instance accessor property

Temporal.PlainDateTime.prototype.dayOfWeek

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The dayOfWeek accessor property of PlainDateTime instances returns a positive integer representing the 1-based day index in the week of this date. Days in a week are numbered sequentially from 1 to daysInWeek, with each number mapping to its name. It is calendar-dependent.

The set accessor of dayOfWeek is undefined. You cannot change this property directly. To create a new Temporal.PlainDateTime object with the desired new dayOfWeek value, use the add() or subtract() method with the appropriate number of days.

For general information and more examples, see Temporal.PlainDate.prototype.dayOfWeek.

Examples

Using dayOfWeek

const dt = Temporal.PlainDateTime.from("2021-07-01");
console.log(dt.dayOfWeek); // 4; Thursday

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also