import { ZDateTime, ZDateTimeOptions } from '../date/date-time.mjs';
/**
 * Basic date formats that are common for storage and usage.
 */
export declare enum ZDateFormats {
    /**
     * Standard {@link https://en.wikipedia.org/wiki/ISO_8601 | ISO-8601} format with date only.
     *
     * Using this should imply midnight user timezone.
     */
    IsoDateOnly = "yyyy-MM-dd",
    /**
     * Standard {@link https://en.wikipedia.org/wiki/ISO_8601 | ISO-8601} format with time only.
     */
    IsoTimeOnly = "HH:mm:ss.SSS",
    /**
     * Standard {@link https://en.wikipedia.org/wiki/ISO_8601 | ISO-8601} format without timezone specifier.
     */
    IsoNoTimeZone = "yyyy-MM-dd'T'HH:mm:ss.SSS",
    /**
     * Standard {@link https://en.wikipedia.org/wiki/ISO_8601 | ISO-8601} format.
     */
    Iso = "yyyy-MM-dd'T'HH:mm:ss.SSSXX",
    /**
     * Users local date (locale specific).
     */
    LocalDate = "P",
    /**
     * User local time (locale specific).
     */
    LocalTime = "p",
    /**
     * Date and time formatted with user specific locale.
     */
    LocalDateTime = "Pp"
}
/**
 * Formats a given value.
 *
 * @param value -
 *        The value to format.
 * @param options -
 *        The given options for the format.
 *
 * @returns
 *        If value is null or undefined, then the empty string is returned.
 *        If value is a string, then the date is guessed from the string and
 *        reformatted to the format specified by options.  Otherwise,
 *        the date or number specified by value is formatted to the culture,
 *        timezone, and format specified in the options.
 */
export declare function formatDateTime(value: ZDateTime, options?: ZDateTimeOptions<string>): string;