/**
 * Date segment
 */
type Segment = {
    /**
     * Year, e.g. 2020, 30, -2
     */
    year: number;
    /**
     * Month, e.g. 0, 1, 11
     */
    month: number;
    /**
     * Day of the month, e.g. 1, 28, 31
     */
    day: number;
};
/**
 * Date format:
 * - yyyy-MM-dd (e.g. 2020-06-30, 0030-04-30, -0002-12-31)
 * - yyyy-MM (e.g. 2020-06, 0030-04, -0002-12)
 * - yyyy (e.g. 2020, 0030, -0002)
 */
declare enum Format {
    yyyy = "yyyy",
    yyyyMM = "yyyy-MM",
    yyyyMMdd = "yyyy-MM-dd"
}
type InputFormat = Format | keyof typeof Format;
/**
 * Get Local/UTC values segments of Date object or value string
 * @param value Valid date or a string in a format 2019, 2019-12 or 2019-12-31
 * @param [isUTC=false] True to get UTC values, false to get Local values
 * @returns Segment
 */
declare const toSegment: (value: string | Date, isUTC?: boolean) => Segment;
/**
 * Format Date or Segment to Local Date string.
 * @param value A valid Date or Segment
 * @param [format='yyyy-MM-dd'] Date format, one of 'yyyy-MM-dd' | 'yyyy-MM' | 'yyyy'
 * @returns A formatted date
 */
declare const format: (value: Segment | Date, format?: InputFormat) => string;
/**
 * Format Date or Segment to UTC Date string.
 * @param value A valid Date or Segment
 * @param [format='yyyy-MM-dd'] Date format, one of 'yyyy-MM-dd' | 'yyyy-MM' | 'yyyy'
 * @returns A formatted date
 */
declare const utcFormat: (value: Segment | Date, format?: InputFormat) => string;
/**
 * Try to guess date format
 * @param value Value to test
 * @returns format Date format
 */
declare const getFormat: (value: string) => Format | null;
/**
 * Return true if value confirms ta a passed format
 * @param value Value to check
 * @param [format] The format to validate value against. If not defined, try to guess the format
 * @returns true if value format is correct
 */
declare const isValid: (value: string, format?: InputFormat | null) => boolean;
/**
 * Get Local Date object from value string or Segment.
 * @param value Value to parse, Segment or 'yyyy-MM-dd' | 'yyyy-MM' | 'yyyy'
 * @returns parsed date or invalid date
 */
declare const parse: (value: string | Segment) => Date;
/**
 * Get UTC Date object from value string or Segment.
 * @param value Value to parse, Segment or 'yyyy-MM-dd' | 'yyyy-MM' | 'yyyy'
 * @returns parsed date or invalid date
 */
declare const utcParse: (value: string | Segment) => Date;
/**
 * Get number of day in a month
 * @param year A year to check
 * @param month A month to check
 * @returns the number of days in month
 */
declare const getDaysInMonth: (year: number, month: number) => number;
export { Segment, Format, InputFormat, toSegment, getFormat, format, utcFormat, parse, utcParse, isValid, getDaysInMonth };