Temporal.ZonedDateTime.prototype.dayOfWeek

The dayOfWeek accessor property of {{jsxref("Temporal.ZonedDateTime")}} 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 {{jsxref("Temporal/ZonedDateTime/daysInWeek", "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.ZonedDateTime object with the desired new dayOfWeek value, use the {{jsxref("Temporal/ZonedDateTime/add", "add()")}} or {{jsxref("Temporal/ZonedDateTime/subtract", "subtract()")}} method with the appropriate number of days.

For general information and more examples, see {{jsxref("Temporal/PlainDate/dayOfWeek", "Temporal.PlainDate.prototype.dayOfWeek")}}.

Examples#

Using dayOfWeek#

const dt = Temporal.ZonedDateTime.from("2021-07-01[America/New_York]");
console.log(dt.dayOfWeek); // 4; Thursday

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Temporal.ZonedDateTime")}}
• {{jsxref("Temporal/ZonedDateTime/with", "Temporal.ZonedDateTime.prototype.with()")}}
• {{jsxref("Temporal/ZonedDateTime/add", "Temporal.ZonedDateTime.prototype.add()")}}
• {{jsxref("Temporal/ZonedDateTime/subtract", "Temporal.ZonedDateTime.prototype.subtract()")}}
• {{jsxref("Temporal/ZonedDateTime/day", "Temporal.ZonedDateTime.prototype.day")}}
• {{jsxref("Temporal/ZonedDateTime/dayOfYear", "Temporal.ZonedDateTime.prototype.dayOfYear")}}
• {{jsxref("Temporal/ZonedDateTime/daysInWeek", "Temporal.ZonedDateTime.prototype.daysInWeek")}}
• {{jsxref("Temporal/ZonedDateTime/weekOfYear", "Temporal.ZonedDateTime.prototype.weekOfYear")}}
• {{jsxref("Temporal/ZonedDateTime/yearOfWeek", "Temporal.ZonedDateTime.prototype.yearOfWeek")}}
• {{jsxref("Temporal/PlainDate/dayOfWeek", "Temporal.PlainDate.prototype.dayOfWeek")}}