/**
 * Muhurta — finding auspicious windows. `abhijitMuhurta()` gives the
 * midday window (the middle 1/15 of daylight); `findMuhurta()` scans a
 * range against configurable panchang rules and merges passing instants
 * into windows.
 */
export interface Place {
    latitude: number;
    longitude: number;
    /** IANA zone defining the local calendar date, e.g. "Asia/Kathmandu". */
    timezone: string;
}
export interface MuhurtaWindow {
    start: Date;
    end: Date;
}
export interface MuhurtaRules {
    /** Exclude the day's Rahu Kaal. Default true. */
    avoidRahuKaal?: boolean;
    /** Only accept instants between sunrise and sunset. Default true. */
    daylightOnly?: boolean;
    /** Accepted vaar indices (0 = Sunday), unrestricted when omitted. */
    allowedVaars?: readonly number[];
    /** Accepted tithi indices 0–29, unrestricted when omitted. */
    allowedTithis?: readonly number[];
    /** Accepted nakshatra indices 0–26, unrestricted when omitted. */
    allowedNakshatras?: readonly number[];
    /** Accepted yoga indices 0–26, unrestricted when omitted. */
    allowedYogas?: readonly number[];
}
export interface FindMuhurtaOptions extends Place {
    from: Date;
    to: Date;
    rules?: MuhurtaRules;
    /** Scan resolution in minutes; window edges snap to it. Default 5. */
    stepMinutes?: number;
}
/**
 * Abhijit muhurta — the middle 1/15 of daylight (about 24 minutes around
 * local solar noon), or null on polar days without a sunrise/sunset pair.
 *
 * @example
 * ```ts
 * abhijitMuhurta(new Date('2026-07-02T06:00:00Z'),
 *   { latitude: 27.7172, longitude: 85.324, timezone: 'Asia/Kathmandu' });
 * // ≈ { start: 11:40 NPT, end: 12:35 NPT } (a 55-min 1/15 of a 13.8-h day)
 * ```
 */
export declare function abhijitMuhurta(date: Date, place: Place): MuhurtaWindow | null;
/**
 * Scan `[from, to]` and return the windows where every rule holds.
 * Edges are quantized to `stepMinutes`, so treat them as ±step accurate.
 *
 * @example
 * ```ts
 * findMuhurta({
 *   from, to, latitude: 27.7172, longitude: 85.324,
 *   timezone: 'Asia/Kathmandu',
 *   rules: { avoidRahuKaal: true, allowedVaars: [1, 3, 4, 5] },
 * }); // → [{ start, end }, …] daylight windows outside Rahu Kaal
 * ```
 */
export declare function findMuhurta(options: FindMuhurtaOptions): MuhurtaWindow[];
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