import { TimeManagerOptions, TimeSnapshot, TimeState } from '@rpgjs/common';
export declare class ClientTimeManager {
    private snapshot;
    private listeners;
    /**
     * Server clock minus client clock, in milliseconds, measured when a snapshot is received.
     * The snapshot is anchored on the clock of the server: without this offset, a client clock that is
     * 1 second off shifts the displayed time by `scale / 60` game minutes.
     */
    private clockOffset;
    configure(_options?: TimeManagerOptions): void;
    acceptSnapshot(snapshot: TimeSnapshot | null, options?: {
        measureClock?: boolean;
    }): void;
    patchSnapshot(patch: Partial<TimeSnapshot>): void;
    state(now?: number): TimeState | null;
    onChange(callback: (state: TimeState | null) => void): () => void;
    private emit;
}