import { type DateValue } from '@internationalized/date';
/**
 * Checks if a given DateValue represents today's date
 * @param dateValue
 * @returns boolean
 */
export declare function isToday(date: DateValue | string | null | undefined): boolean;
/**
 * Safely parses a date string into a DateValue
 * @param dateString - ISO date string to parse
 * @returns DateValue or null if parsing fails
 */
export declare function safeParseDateString(dateString: string): DateValue | null;
/**
 * Formats a DateValue to its ISO string representation (YYYY-MM-DD)
 * @param date - DateValue or null
 * @returns ISO date string (e.g., "2025-09-21") or empty string
 */
export declare function formatDateValue(date: DateValue | null): string;
/**
 * Formats a date value or ISO date string for display, with special handling for "today"
 *
 * @param date - DateValue, ISO date string, or null/undefined
 * @param format - Intl date formatting style (default: 'medium')
 * @param locales - Locales for formatting (default: 'en-AU')
 * @returns Formatted date string or empty string for null/undefined
 *
 * @example
 * ```ts
 * displayFormattedDate('2025-09-21') // (locale default) "21/09/2025"
 * displayFormattedDate('2025-09-21', 'short') // "21/9/25"
 * displayFormattedDate('2025-09-21', 'medium') // "Sep 21, 2025"
 * displayFormattedDate('2024-01-15', 'full') // "Monday, January 15, 2024"
 * ```
 */
export declare function displayFormattedDate(date: DateValue | string | null | undefined, format?: Intl.DateTimeFormatOptions['dateStyle'], locales?: Intl.LocalesArgument): string;
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