import { DateString } from '../types/dates.js';
/** Detects if a string is accepted by Date javascript type */
export declare const isDateString: (dateString: unknown) => dateString is DateString;
/** Validates if an input number or string is a valid timestamp */
export declare const isValidTimestamp: (timestamp: number | string) => boolean;
/** Checks if an input is valid to be used as a timestamp. */
export declare const isDateCompatibleToTimestamp: (input: number | DateString | Date | undefined) => input is number | DateString | Date;
/** Check if an unknown value could be parsed to a date */
export declare const isParseableDate: (value: unknown) => boolean;