export declare type Options = {
    /** Display 'GMT' in time zones */
    GMT?: boolean;
    /** Display 'Z' for the GMT time zone */
    Z?: boolean;
};
/**
 * Determine the correct timezone string for a specified date using a local timezone, or an offset in minutes
 *
 * @remarks the GMT flag overrides the Z flag if both are set
 * @param input The date, or a timezone offset in minutes
 * @param __namedParameters see {@link Options}
 * @default GMT false
 * @default Z true
 * @returns the timezone offset formatted like '±hh:mm' the string is prefixed by 'GMT' if the option is set.  If the Z option is set 'Z' is returned for the
 * GMT+00:00 timezone
 */
export declare function getTimezone(input: Date | number, { GMT, Z }?: Options): string;
export default getTimezone;