interface CurrentTimePosition {
    now: Date;
    top: number;
    visible: boolean;
}
/**
 * Tracks current time and computes vertical position within a time grid.
 * Updates every 60 seconds. Shared between DayView and WeekView.
 */
export declare function useCurrentTime(startHour: number, endHour: number, isInView: boolean, currentTime?: Date): CurrentTimePosition;
export {};