`Date.prototype.getMonth()`

Returns the month of a date in local time as a zero-based number.

Syntax

date.getMonth()

number — The month, 0 (January) through 11 (December).

const d = new Date("2026-01-15");
console.log(d.getMonth());

Output

const months = ["Jan", "Feb", "Mar"];
const d = new Date("2026-03-01T12:00:00");
console.log(months[d.getMonth()]);

Output

Mar

- Months are zero-based, so January is `0` and December is `11`. - Use `getUTCMonth()` for the UTC month.