import { TimeAdapter } from './time-adapter';
import { MatTimePeriodType } from '../time-period';
import * as i0 from "@angular/core";
/** Adapts the native JS Date for components that work with time. */
export declare class NativeDateTimeAdapter extends TimeAdapter<Date> {
    private readonly _matTimeLocale;
    constructor(matTimeLocale: string);
    now(): Date;
    parse(value: any, parseFormat?: any): Date | null;
    parseTime(value: string): {
        hour: number;
        minute: number;
        meridiem?: 'am' | 'pm';
    };
    getHour(date: Date): number;
    getMinute(date: Date): number;
    updateHour(date: Date, hour: number): Date;
    updateMinute(date: Date, minute: number): Date;
    getPeriod(date: Date): MatTimePeriodType;
    format(date: Date, displayFormat: Object): string;
    /**
     * Returns the given value if given a valid Date or null. Deserializes valid ISO 8601 strings
     * (https://www.ietf.org/rfc/rfc3339.txt) into valid Dates and empty string into null. Returns an
     * invalid date for all other values.
     */
    deserialize(value: any): Date | null;
    isTimeInstance(obj: any): boolean;
    isValid(date: Date): boolean;
    invalid(): Date;
    compareTime(first: Date, second: Date): number;
    /**
     * When converting Date object to string, javascript built-in functions may return wrong
     * results because it applies its internal DST rules. The DST rules around the world change
     * very frequently, and the current valid rule is not always valid in previous years though.
     * We work around this problem building a new Date object which has its internal UTC
     * representation with the local date and time.
     * @param dtf Intl.DateTimeFormat object, containing the desired string format. It must have
     *    timeZone set to 'utc' to work fine.
     * @param date Date from which we want to get the string representation according to dtf
     * @returns A Date object with its UTC representation based on the passed in date info
     */
    private _format;
    static ɵfac: i0.ɵɵFactoryDeclaration<NativeDateTimeAdapter, [{ optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NativeDateTimeAdapter>;
}