import { nil } from '@ag1/nil';
/**
 *
 * @param date
 * @param pattern d-MMM-yyyy HH:mm
 * @param isBE
 */
export declare function formatDate(date: Date | number, pattern: string, isBE?: boolean): string;
/**
 *
 * @param str - date string
 *
 * @return string - pretty date
 */
export declare function formatPrettyDate(str: string): string;
export declare function isValidDate<T extends string | Date>(val: T | nil): val is T;
export declare function getPrettyThaiDate(val: string | Date | nil): string | undefined;
export declare function getPrettyThaiDateTime(val: string | Date | nil): string | undefined;
export declare function formatDatePicker(date: Date | number): string;
export declare function formatTimePicker(date: Date | number): string;
/**
 *
 * @param dateStr - string date format, eg YYYY-MM-DDTHH:mm:ss.sssZ or YYYY-MM-DD
 * @param timeStr - string number with colon, eg. 12:12(HH:mm)
 *
 * @return Date | undefined
 */
export declare function getSpecificDateTime(dateStr: string, timeStr: string): Date | undefined;
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