/**
 * Returns a new Date from the given arguments.
 * @param {string | number | Date} date The date value
 * @param {?boolean} [utc=false] Interprets the given value as a UTC date
 * @returns {Date} The new date object
 */
export declare function asDate(date: string | number | Date, utc?: boolean): Date;
/**
 * Returns a localized string representation of this date, according to the given format string. Format codes use the same specification as {@link https://momentjs.com/docs/#/displaying/format/ moment}.
 * @param {string} str The format string to use
 * @see {@link https://momentjs.com/docs/#/displaying/format/ List of formats}
 * @example
```js
formatDate(new Date(), 'MM/DD/YYYY') // '10/31/2022'
```
  */
export declare function formatDate(formatStr: string, date: Date, locale?: string): string;
/**
 * Formats a date using a formatting string in the {@link https://strftime.org/ strftime} format, in any given locale.
 * @param {string} fmt The format string to apply
 * @param {Date} date The date value
 * @param {?string} locale The locale to use when formatting (default is system locale).
 * @returns {string} The string representation of date
 * @see {@link https://strftime.org/ strftime format}
 */
export declare function strftime(fmt: string, date: Date, locale?: string): string;