import { TranslationWidth } from '@angular/common';
export declare abstract class NbDateService<D> {
    readonly DAYS_IN_WEEK: number;
    protected locale: string;
    setLocale(locale: any): void;
    isBetween(date: D, start: D, end: D): boolean;
    isSameDaySafe(date1: D, date2: D): boolean;
    isSameMonthSafe(date1: D, date2: D): boolean;
    isSameYearSafe(date1: D, date2: D): boolean;
    abstract isValidDateString(date: string, format: string): boolean;
    abstract today(): D;
    abstract getDate(date: D): number;
    abstract getMonth(date: D): number;
    abstract getYear(date: D): number;
    abstract getDayOfWeek(date: D): number;
    abstract getFirstDayOfWeek(): number;
    abstract getMonthName(date: D, style?: TranslationWidth): string;
    abstract getMonthNameByIndex(month: number, style?: TranslationWidth): string;
    abstract getDayOfWeekNames(style?: TranslationWidth): string[];
    abstract parse(date: string, format: string): D;
    abstract format(date: D, format: string): string;
    abstract createDate(year: number, month: number, date: number): D;
    abstract isSameYear(date1: D, date2: D): boolean;
    abstract isSameMonth(date1: D, date2: D): boolean;
    abstract isSameDay(date1: D, date2: D): boolean;
    abstract compareDates(date1: D, date2: D): number;
    abstract clone(date: D): D;
    abstract getMonthStart(date: D): D;
    abstract getMonthEnd(date: D): D;
    abstract getYearStart(date: D): D;
    abstract getYearEnd(date: D): D;
    abstract getNumberOfDaysInMonth(date: D): number;
    abstract addDay(date: D, days: number): D;
    abstract addMonth(date: D, months: number): D;
    abstract addYear(date: D, years: number): D;
}