Temporal.PlainYearMonth.prototype.daysInMonth

The daysInMonth accessor property of Temporal.PlainYearMonth instances returns a positive integer representing the number of days in the month of this date. It is calendar-dependent.

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

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

Examples

Using daysInMonth

const ym = Temporal.PlainYearMonth.from("2021-07");
console.log(ym.daysInMonth); // 31

Specifications

• Temporal

See also

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