import { default as React } from 'react';
export type ClockMode = 'realtime' | 'offset' | 'frozen';
export type ClockCatchUp = 'fire-once' | 'skip';
export interface ClockConfig {
    initialTime?: string;
    timezone?: string;
    mode?: ClockMode;
    rate?: number;
    editable?: boolean;
    catchUp?: ClockCatchUp;
}
export interface ClockSnapshot {
    mode: ClockMode;
    timezone?: string;
    rate: number;
    editable: boolean;
    catchUp: ClockCatchUp;
    virtualEpoch: number;
    realEpoch: number;
}
export interface XPClockApi {
    now: () => string;
    nowMs: () => number;
    set: (iso: string, source?: 'user' | 'host' | 'snapshot') => void;
    advance: (ms: number, source?: 'user' | 'host') => void;
    reset: () => void;
    getSnapshot: () => ClockSnapshot;
    loadSnapshot: (snapshot: ClockSnapshot) => void;
    subscribe: (listener: () => void) => () => void;
    mode: ClockMode;
    timezone?: string;
    rate: number;
    editable: boolean;
    catchUp: ClockCatchUp;
}
declare const createInitialSnapshot: (config: ClockConfig, realNow?: number) => ClockSnapshot;
declare const valueAt: (state: ClockSnapshot, realNow?: number) => number;
export interface ClockProviderProps {
    children: React.ReactNode;
    config?: ClockConfig;
}
export declare const ClockProvider: React.FC<ClockProviderProps>;
export declare const useClock: () => XPClockApi;
export { createInitialSnapshot, valueAt };