import { DateMathDiff, DateMathDiffUnit, DateOption, DateTimeObject, Locale, LocaleOptions } from './types';

declare class DateMath {
    private readonly date;
    private constructor();
    static set(date: DateOption): DateMath;
    plus(options: DateTimeObject): DateMath;
    minus(options: DateTimeObject): DateMath;
    diffNow(units?: DateMathDiffUnit[]): DateMathDiff;
    diff(other: DateMath, units?: DateMathDiffUnit[]): DateMathDiff;
    toString(options?: {
        format?: string;
        localeOptions?: LocaleOptions;
        locale?: Locale;
    }): string;
    toObject(): import('./types').MakeOptionalRequired<import('./types').DateObjectUnits>;
    toJSDate(): Date;
    toMillis(): number;
    toISO(): string;
}
export default DateMath;