import { IChristianHoliday, ChronologyType } from '../configuration';
import { IBaseCalculator, BaseCalculator } from './base-calculator';
export interface IChristianHolidayCalculator extends IBaseCalculator<IChristianHoliday> {
    getEasternSunday(chronology: ChronologyType, year: number): Date;
}
export declare class ChristianHolidayCalculator extends BaseCalculator<IChristianHoliday> implements IChristianHolidayCalculator {
    constructor();
    calculateDate(holiday: IChristianHoliday, year: number): Date | undefined;
    getEasternSunday(chronology: ChronologyType, year: number): Date;
    private getJulianEasternSunday;
    private getGregorianEasterSunday;
}
//# sourceMappingURL=christian-holiday-calculator.d.ts.map