import { DurationStr } from '../util/TimeDurations';
export declare type ISODateTimeString = string;
export declare type ISODateYearString = string;
export declare type ISODateYearMonthString = string;
export declare type ISODateYearMonthDayString = string;
export declare type ISODateString = ISODateYearMonthDayString;
export declare type UnixTimeMS = number;
export declare type DateLike = Date | number | string;
export declare class ISODateTimeStrings {
    static create(value?: DateLike): ISODateTimeString;
    static adjust(datetime: ISODateTimeString, durationStr: DurationStr): string;
    static toISODateString(date: Date): ISODateString | undefined;
    static toPartialDay(date?: DateLike): string | undefined;
    static toPartialMonth(date?: DateLike): string | undefined;
    static toPartialWeek(date?: DateLike): string;
    static toISODateStringRoundedToHour(date: Date | number | ISODateString): string;
    static toISODateTimeString(date: Date): string;
    static parse(value: string): Date;
    static toUnixTimeMS(value: string): UnixTimeMS;
    static toISODate(input: ISODateTimeString): ISODateString;
    static toISOYear(input: ISODateTimeString): ISODateString;
    static compare(a: ISODateTimeString, b: ISODateTimeString): number;
}