export declare const defaultMeridiem: (hours: number, minutes: number, isLowercase?: boolean, hasPeriod?: boolean) => string;
export declare const formatOrdinal: (num: number) => string;
export type FormatDateOptions = {
    /**
     * Whether to use Unicode date symbols.
     *
     * @see https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
     *
     * @defaultValue false
     */
    unicodeSymbols?: boolean;
    /**
     * The locales argument indicates the locale to use.
     */
    locales?: Intl.LocalesArgument;
    /**
     * A custom function to format the meridiem.
     */
    customMeridiem?: (hours: number, minutes: number, isLowercase?: boolean, hasPeriod?: boolean) => string;
};
export declare const formatDate: (date: Date, formatStr: string, options?: FormatDateOptions) => string;
export type DateLike = Date | number | string;
export declare function normalizeDate(date: DateLike | null | undefined): Date;