/**
 * Converts a Anno Domini (AD) date to an Bikram Sambat(BS) Date.
 * @param {string} adDate - The Anno Domini (AD) date in "YYYY-MM-DD" format.
 * @returns {string} - The corresponding Bikram Sambat(BS) date in "YYYY-MM-DD" format.
 */
export declare const ADtoBS: (adDate: string) => string;
/**
 * Converts a Bikram Sambat(BS) to an Anno Domini (AD) Date.
 * @param bsDate - The Bikram Sambat(BS) date in "YYYY-MM-DD" format.
 * @returns {string} - The corresponding Anno Domini (AD) date in "YYYY-MM-DD" format.
 */
export declare function BStoAD(bsDate: string): string;