export declare class DateService {
    serializeDateByLocale(date: Date, locale: string): string;
    serializeDate(date: Date): string;
    serializeDateTimeByLocale(date: Date, locale: string): string;
    today(): Date;
    addDay(date: Date, daysNumber: number): Date;
    addMonth(date: Date, monthNumber: number): Date;
    addYear(date: Date, yearNumber: number): Date;
    addHour(date: Date, hour: number): Date;
    addMinutes(date: Date, minutes: number): Date;
    addSeconds(date: Date, seconds: number): Date;
    removeTime(date: Date): Date;
    removeMinutes(date: Date): void;
    removeHours(date: Date): void;
    /**
     * Remove zero first char of string
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {string} value
     * @returns {string}
     */
    unPad(value: string): string;
    /**
     * Convert date in ISO string.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {Date} date
     * @return {any}
     */
    convertDateToString(date: Date, locale?: string): any;
    /**
     * Convert string to Date.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {string} dateStringify
     * @return {any}
     */
    convertStringToDate(dateStringify: any): any;
    /**
     * Convert a string in a valid date.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} result
     * @param {string} property
     * @return {any}
     */
    convertIntoDate(result: any, property: string): any;
    /**
     * Convert date in a string.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} entity
     * @param {string} property
     * @return {any}
     */
    stringifyDate(entity: any, property: string): any;
    firstDayOfMonth(dateInput?: Date): Date;
    lastDayOfMonth(dateInput?: Date): Date;
}