/**
 * Calculate the number of days between two dates.
 */
export declare function daysBetween(date1: Date, date2: Date): number;
/**
 * Calculate the number of days a date is old from now.
 */
export declare function daysOld(dateStr: string, now?: Date): number;
/**
 * Parse an ISO 8601 date string to a Date object.
 * Supports both date (YYYY-MM-DD) and date-time formats.
 */
export declare function parseDate(dateStr: string): Date;
/**
 * Check if a date string is before another date string.
 */
export declare function isBefore(date1: string, date2: string): boolean;
/**
 * Check if a date string is after another date string.
 */
export declare function isAfter(date1: string, date2: string): boolean;
/**
 * Check if a date string is in the past.
 */
export declare function isPast(dateStr: string, now?: Date): boolean;
/**
 * Check if a date string is in the future.
 */
export declare function isFuture(dateStr: string, now?: Date): boolean;
/**
 * Freshness thresholds for date validation (in days).
 */
export declare const FRESHNESS_THRESHOLDS: {
    /** Sanctions screening should be within 90 days */
    readonly SANCTIONS_SCREENING: 90;
    /** PEP risk assessment should be within 180 days */
    readonly PEP_ASSESSMENT: 180;
    /** Adverse media assessment should be within 180 days */
    readonly ADVERSE_MEDIA: 180;
    /** Tax ID verification should be within 2 years (730 days) */
    readonly TAX_VERIFICATION: 730;
};
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