Function startOfMonth

packages/@internationalized/date/src/queries.ts:170–173

(date: DateValue)

export function startOfMonth(date: CalendarDate): CalendarDate;
export function startOfMonth(date: DateValue): DateValue;
export function startOfMonth(date: DateValue): DateValue {
  // Use `subtract` instead of `set` so we don't get constrained in an era.
  return date.subtract({days: date.day - 1});
}

/** Returns the last date of the month for the given date. */
export function endOfMonth(date: ZonedDateTime): ZonedDateTime;