/**
 * Turns a date string into JS Date
 * @param jsonDate json date string
 */
export declare function parseJsonDate(jsonDate: string): Date;
/**
 * Get the day of the year for a given date
 * @param date date
 */
export declare function getDayOfYear(date: Date): number;
/**
 * Get the Date that is number of days from now
 * @param day number of days
 */
export declare function getDateFromDay(day: any): Date;
/**
 * Get the Date that is number of days from now or from min date
 * @param day number of days
 * @param minDate minimum date
 */
export declare function getClosestDateFromDay(day: number, minDate?: Date): Date;
/**
 * Turns a date string into JS date
 * @param dateString date string
 */
export declare function getDateFromString(dateString: string): Date;
/**
 * Get the number of months / years from the dateSince till today
 * @param dateSince starting date
 */
export declare function getDateYearMonthSince(dateSince: Date | string): {
    years: number;
    months: number;
};
/**
 * Get the number of months from the dateSince until today
 * @param dateSince starting date
 */
export declare function getNumberOfMonths(dateSince: Date | string, utc?: boolean): number;
/**
 * Get the number of months within a year until today
 * @param dateSince starting date
 */
export declare function computeMonthInYearDuration(dateSince: Date | string, utc?: boolean): number;
/**
 * Trim the time portion (reset to 00:00:00) for a given date
 * @param date date
 * @param sourceIsUtc - if true, get the local time equivalent of the date input first before extracting the date portion
 */
export declare function getDateWithoutTime(date: Date, sourceIsUtc?: boolean): Date;
/**
 * Combine Datepart and Timepart from 2 different dates
 * @param datePart
 * @param timePart
 */
export declare function combineDateTime(datePart: Date, timePart: Date): Date;
/**
 * Convert date time to JSON string format
 * @param date
 */
export declare function convertDateToJSONString(date: Date): string;
export declare function getUtcEquivalentOfLocalDateTime(localDateTime: Date | null): Date | null;
export declare function getLocalDateTimeEquivalentOfUTC(utcDateTime: Date | null): Date | null;
export declare function getLocalDateTimeFromUTCString(utcDateString: string): Date | null;
export declare function getAgeByDate(date: Date): number;
/**
 * Convert YearsJob to Year and Months string format
 *  4.5 YearsJob (db) to 4 years and 6 months (UI)
 */
export declare function convertDecimalToYearMonthFormat(yearsAndMonths: any): Date;
export declare function formatUtcDate(date: string | Date, formatString: string): string;
export declare function getDateSinceYearsMonths(years: number, months: number, dateSince?: Date): Date;