import { C as Clock } from './types-DKirIBQt.js';

/** The real wall clock. The only place `Date.now()` is allowed to live. */
declare const systemClock: Clock;
/**
 * A clock you control, for deterministic tests. Time only moves when you move it, so every
 * limit is reproducible to the millisecond.
 *
 * @example
 * const clock = new ManualClock(0);
 * clock.advance(500); // now === 500
 */
declare class ManualClock implements Clock {
    #private;
    constructor(start?: number);
    now(): number;
    /** Move time forward by `ms` (must be non-negative; time is monotonic). */
    advance(ms: number): void;
    /** Jump to an absolute epoch-ms (may move backwards; algorithms are jump-safe). */
    set(ms: number): void;
}

export { ManualClock as M, systemClock as s };