export declare const SEC = 1000000;
export declare function tim(inp: string | number): number;
export declare class Timerange {
    start: number;
    duration: number;
    constructor(start: number, duration: number);
    static importJson(jsonObj: {
        start: string;
        duration: string;
    }): Timerange;
    get end(): number;
    equals(other: Timerange): boolean;
    overlaps(other: Timerange): boolean;
    toString(): string;
    export_json(): {
        start: number;
        duration: number;
    };
}
export declare function trange(start: string | number, duration: string | number): Timerange;
export declare function srtTimestamp(srtTimestamp: string): number;