export declare const toUTC: (date: string) => number; export declare const addDays: (date: string, days: number) => string; export declare const daysInRange: (start: string, end: string) => number; export declare const isValidDateString: (value: string) => boolean; export declare const validateDateRange: (start: string, end: string) => void; //# sourceMappingURL=date.d.ts.map