import { DateLike } from "./DateLike";
import { Brand } from "./internal";
export declare type DurationMs = number & Brand<"DurationMs">;
export declare function isDurationMs(x: any): x is DurationMs;
export declare function asDurationMs(n: number): DurationMs;
export declare const SECOND_MS: DurationMs;
export declare const MINUTE_MS: DurationMs;
export declare const HOUR_MS: DurationMs;
export declare const DAY_MS: DurationMs;
export interface DurationSpec {
    days?: number;
    hours?: number;
    minutes?: number;
    seconds?: number;
    ms?: number;
}
export declare function durationMs(spec: DurationSpec): DurationMs;
export declare type EpochMs = number & Brand<"EpochMs">;
export declare function isEpochMs(x: any): x is EpochMs;
export declare function toEpochMs(x: DateLike): EpochMs;
export declare function nowEpochMs(): EpochMs;
export declare namespace DurationCalc {
    function offset(base: EpochMs, duration: DurationMs): EpochMs;
    function between(start: EpochMs, end: EpochMs): DurationMs;
    function sum(...durations: DurationMs[]): DurationMs;
    function negate(duration: DurationMs): DurationMs;
    function max<T extends DurationMs | EpochMs>(...xs: T[]): T;
    function min<T extends DurationMs | EpochMs>(...xs: T[]): T;
}