/**
 * 使用本地时区格式化日期为ISO格式
 */
export declare function formatIsoDateTimeLocale(date: Date): string;
/**
 * 使用UTC时区格式化日期为ISO格式
 */
export declare function formatIsoDateTimeUtc(date: Date): string;
export declare function formatDateTime(date: Date): string;
export declare function formatDate(date: Date): string;
export declare function formatTime(date: Date, withDigit?: boolean): string;