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Temporal.PlainYearMonth.prototype.daysInYear

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The daysInYear accessor property of {{jsxref("Temporal.PlainYearMonth")}} instances returns a positive integer representing the number of days in the year of this date. It is calendar-dependent.

The set accessor of daysInYear is undefined. You cannot change this property directly.

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

Examples#

Using daysInYear#

const ym = Temporal.PlainYearMonth.from("2021-07");
console.log(ym.daysInYear); // 365

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

  • {{jsxref("Temporal.PlainYearMonth")}}
  • {{jsxref("Temporal/PlainYearMonth/with", "Temporal.PlainYearMonth.prototype.with()")}}
  • {{jsxref("Temporal/PlainYearMonth/add", "Temporal.PlainYearMonth.prototype.add()")}}
  • {{jsxref("Temporal/PlainYearMonth/subtract", "Temporal.PlainYearMonth.prototype.subtract()")}}
  • {{jsxref("Temporal/PlainYearMonth/year", "Temporal.PlainYearMonth.prototype.year")}}
  • {{jsxref("Temporal/PlainYearMonth/daysInMonth", "Temporal.PlainYearMonth.prototype.daysInMonth")}}
  • {{jsxref("Temporal/PlainDate/daysInYear", "Temporal.PlainDate.prototype.daysInYear")}}