export declare class DateService {
    constructor();
    dateFormatString(value: any, locale: string): string;
    getDayAndMonth(date: Date): string;
    formatDate(dateStr: any, locale: string | null): string;
    formatPeriod(fromUtc: any, toUtc: any, locale: string | null): string;
    formatTime(date: any, locale: string): string;
    getCustomDate(date: any, locale: string, isFullMonth: boolean): string;
    getCustomDateWithTitle(date: any, locale: string | null, isFullMonth: boolean): string;
    getCustomPeriod(period: any, locale: string | null): string;
    getDiffPeriod(period: any): {
        years: number;
        months: number;
        days: number;
    };
    getPeriodString(years: any, months: any, days: any, locale: any, and: any): string;
    private getYearString;
    private getMonthString;
    private getDayString;
    getCustomDiffPeriod(period: any, locale: string | null, and: string, flag?: boolean): string;
    setPresetPeriods(periodDictionary: any[], ranges: any, fullperiod: any): void;
    getMonths(): string[];
    getMonthsShortName(): any;
    getTotalDaysFromYoutubeDate(date: any): number;
    getPeriodInMonths(fromUtc: any, toUtc: any, locale: string | null): string;
    transformDate(data: any): Date;
}