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Temporal.PlainYearMonth.prototype.daysInYear

Baseline Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The daysInYear accessor property of 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 Temporal.PlainDate.prototype.daysInYear.

Examples

Using daysInYear

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

Specifications

Specification
Temporal
# sec-get-temporal.plainyearmonth.prototype.daysinyear

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on iOS Samsung Internet WebView Android WebView on iOS Bun Deno Node.js
daysInYear
144
144
139
128
preview
144
139
95
No
No
144
No
1.4.0
2.7
26.0.0

See also

  • Temporal.PlainYearMonth
  • Temporal.PlainYearMonth.prototype.with()
  • Temporal.PlainYearMonth.prototype.add()
  • Temporal.PlainYearMonth.prototype.subtract()
  • Temporal.PlainYearMonth.prototype.year
  • Temporal.PlainYearMonth.prototype.daysInMonth
  • Temporal.PlainDate.prototype.daysInYear

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/PlainYearMonth/daysInYear

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