import { DateTime } from "luxon";
export declare function initializeTimezone(timezone: string): void;
export declare function getTimezone(): string;
export declare function parseDateInput(value: string | number | Date): number;
export declare function toIsoDateString(value: string | number | Date): string;
export declare function enumerateDateRange(start: string | number | Date, end: string | number | Date): string[];
export declare function isWeekend(dateIso: string): boolean;
export declare function isHoliday(date: string | number | Date, holidays?: Array<string | number | Date>): boolean;
export declare function filterWorkingDays(dates: Array<string | Date | number>, excludeWeekends?: boolean, excludeHolidays?: boolean, holidays?: Array<string | Date | number>): string[];
export declare function getDayBounds(value: string | number | Date): {
    start: number;
    end: number;
};
export declare function minutesToHours(minutes: number): number;
export declare function hoursToMinutes(hours: number): number;
export declare function calculateTotalMinutes(items: Array<{
    duration: {
        minutes?: number | undefined;
    };
}>): number;
export declare function groupWorkItemsByDate<T extends {
    date: number;
}>(items: T[]): Map<string, T[]>;
export declare function validateDateRange(start: string | number | Date, end: string | number | Date): void;
export declare function isWorkingDay(value: string | number | Date): boolean;
export declare function dateToUnixMs(value: string | Date, timezone?: string): number;
export declare function unixMsToDate(timestamp: number): Date;
export declare function formatDate(value: string | number | Date): string;
export declare function formatDateInTimezone(value: string | number | Date, timezone: string): string;
export declare function generateDateRange(start: string | number | Date, end: string | number | Date): Date[];
export declare function filterWorkingDates(dates: Date[], excludeWeekends?: boolean, excludeHolidays?: boolean, holidays?: Date[]): Date[];
export declare function isSameDay(left: string | number | Date, right: string | number | Date): boolean;
export declare function getCurrentTimestamp(): number;
export declare function getCurrentDate(timezone?: string): Date;
export declare function getCurrentDateTime(timezone?: string): DateTime;
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