function nextSecond(h, m, s){
    let final;

    s = s+1;

    if(s == 60){
        m = m+1;
        s = 0;
    }
    if (m == 60) {
        m = 0;
        h = h + 1;
    }

    final = h%24 + ":" + m + ":" + s;

    return final;
}

console.log(nextSecond(10, 59, 59));