import { TimeZone } from './TimeZone.js';
export type ZoneIdString = 'Europe/Amsterdam' | 'UTC' | 'America/New_York';
declare const BRAND: unique symbol;
export declare class ZoneId extends TimeZone {
    private readonly zoneId;
    private [BRAND];
    private constructor();
    /**
     * <p>Returns the browser's current time zone. Gets this information from the browser's Internationalization API.
     * </p>
     * <p>In <a href="https://caniuse.com/internationalization">browsers that do not expose this information</a>, a
     * best-effort guess is made. That guess is performed under the hood by {@code moment.tz.guess()} from
     * {@code moment-timezone}, so read more about it in
     * <a href="https://momentjs.com/timezone/docs/#/using-timezones/guessing-user-timezone/">that function's
     * documentation</a>.<p>
     */
    static browser(): ZoneId;
    static of(zoneId: ZoneIdString | string): ZoneId;
    static equal(zoneId1: ZoneId | null | undefined, zoneId2: ZoneId | null | undefined, ...otherDaysOfWeek: (ZoneId | null | undefined)[]): boolean;
    equals(zoneId: ZoneId | null | undefined): boolean;
    toString(): ZoneIdString;
    static isInstance(value: any): value is ZoneId;
}
export {};