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javascript instance accessor property

Temporal.ZonedDateTime.prototype.weekOfYear

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The weekOfYear accessor property of ZonedDateTime instances returns a positive integer representing the 1-based week index in the yearOfWeek of this date, or undefined if the calendar does not have a well-defined week system. The first week of the year is 1. It is calendar-dependent.

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

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

Examples

Using weekOfYear

const dt = Temporal.ZonedDateTime.from("2021-07-01[America/New_York]");
console.log(dt.weekOfYear); // 26

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also