import SlFormatDate from '@shoelace-style/shoelace/dist/components/format-date/format-date';
export declare class FormatDateBase extends SlFormatDate {
    date: Date | string;
    lang: string;
    weekday: 'narrow' | 'short' | 'long';
    era: 'narrow' | 'short' | 'long';
    year: 'numeric' | '2-digit';
    month: 'numeric' | '2-digit' | 'narrow' | 'short' | 'long';
    day: 'numeric' | '2-digit';
    hour: 'numeric' | '2-digit';
    minute: 'numeric' | '2-digit';
    second: 'numeric' | '2-digit';
    timeZoneName: 'short' | 'long';
    timeZone: string;
    hourFormat: 'auto' | '12' | '24';
}