export declare class DateFormatter {
    formatDate(date: Date | string | number, locale: string, options?: Intl.DateTimeFormatOptions): string;
    formatTime(date: Date | string | number, locale: string, options?: Intl.DateTimeFormatOptions): string;
    formatDateTime(date: Date | string | number, locale: string, options?: Intl.DateTimeFormatOptions): string;
    formatDateToString(date: Date | string | number): string;
    formatToISOString(date: Date | string | number): string;
    formatToDisplayDate(date: Date | string | number): string;
    formatToDisplayDateTime(date: Date | string | number): string;
    formatRelativeTime(date: Date | string | number, locale: string): string;
    parse(date: Date | string | number): Date;
    formatDuration(milliseconds: number): string;
    /**
     * Format time as minutes:seconds (e.g., "3:45", "12:05")
     * @param seconds - Time in seconds
     * @returns Formatted time string
     */
    formatTimeShort(seconds: number): string;
    /**
     * Format date with relative time labels (Today, Yesterday, X days ago, X weeks ago)
     * @param date - Date to format
     * @param locale - Locale code
     * @param translations - Optional translations for "Today", "Yesterday", "days ago", "weeks ago"
     * @returns Formatted relative date string
     */
    formatRelativeDate(date: Date | string | number, locale: string, translations?: {
        today?: string;
        yesterday?: string;
        daysAgo?: string;
        weeksAgo?: string;
    }): string;
    /**
     * Get default translation for relative time keys
     */
    private getDefaultTranslation;
    /**
     * Format date in short format (Jan 1, 2024)
     */
    formatShortDate(date: Date | string | number, locale: string): string;
    /**
     * Alias for formatRelativeTime - more semantic name for "time ago" formatting
     */
    fromNow(date: Date | string | number, locale: string): string;
}