/**
 * Utility functions for calculating business days (Monday-Friday, excluding Brazilian national holidays)
 */
/**
 * Check if a date is a business day (Monday-Friday, not a holiday)
 */
export declare const isBusinessDay: (date: Date) => boolean;
/**
 * Calculate the number of business days between two dates
 * @param fromDate Start date (inclusive)
 * @param toDate End date (exclusive)
 * @returns Number of business days
 */
export declare const calculateBusinessDays: (fromDate: Date, toDate: Date) => number;
/**
 * Parse various date formats from edital data
 */
export declare const parseEditalDate: (dateStr: string) => Date | null;
/**
 * Calculate remaining business days until deadline (3 business days for protest)
 * @param cadastroDate Date when the edital was registered
 * @returns Number of business days remaining (max 3, can be negative if expired)
 */
export declare const calculateRemainingBusinessDays: (cadastroDate: Date) => number;