interface Time {
    hours: number;
    minutes: number;
}
export declare const parseTime: (time: string) => null | Time;
export declare const compareTime: (time1: string, time2: string) => number;
export declare const padTime: (time: number | string) => string;
export declare const formatTime: (time: Time) => string;
export declare const nextTime: (time: string, step: string) => string;
export {};