//#region src/calendar-system/jalaali.d.ts
/**
 * Pure math functions for Gregorian <-> Jalaali (Persian / Solar Hijri) conversion.
 *
 * Based on the public-domain algorithm by Kazimierz M. Borkowski and the
 * jalaali-js implementation (MIT). Zero runtime dependencies.
 *
 * The Persian calendar has 12 months:
 *   - Months 1-6 have 31 days
 *   - Months 7-11 have 30 days
 *   - Month 12 has 29 days (30 in a leap year)
 *
 * Leap years follow a 2820-year cycle.
 */
/**
 * Convert a Gregorian date to a Jalaali (Persian) date.
 *
 * @param gy - Gregorian year
 * @param gm - Gregorian month (1-indexed, 1 = January)
 * @param gd - Gregorian day
 * @returns Jalaali `{ jy, jm, jd }` (month is 1-indexed)
 */
declare function toJalaali(gy: number, gm: number, gd: number): {
  jy: number;
  jm: number;
  jd: number;
};
/**
 * Convert a Jalaali (Persian) date to a Gregorian date.
 *
 * @param jy - Jalaali year
 * @param jm - Jalaali month (1-indexed, 1 = Farvardin)
 * @param jd - Jalaali day
 * @returns Gregorian `{ gy, gm, gd }` (month is 1-indexed)
 */
declare function toGregorian(jy: number, jm: number, jd: number): {
  gy: number;
  gm: number;
  gd: number;
};
/**
 * Check if a Jalaali year is a leap year.
 *
 * @param jy - Jalaali year
 * @returns `true` if the year is a leap year
 */
declare function isLeapJalaaliYear(jy: number): boolean;
/**
 * Get the number of days in a Jalaali month.
 *
 * @param jy - Jalaali year
 * @param jm - Jalaali month (1-indexed, 1 = Farvardin)
 * @returns Number of days (29, 30, or 31)
 */
declare function jalaaliMonthLength(jy: number, jm: number): number;
//#endregion
export { isLeapJalaaliYear, jalaaliMonthLength, toGregorian, toJalaali };