SocketTimeoutException in Retrofit

Increase the time if the fetching is taking more time use this code it worked for me

 OkHttpClient client = new OkHttpClient.Builder()
            .connectTimeout(100, TimeUnit.SECONDS)
            .readTimeout(100,TimeUnit.SECONDS).build();
    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("yourbaseurl").client(client)
            .addConverterFactory(GsonConverterFactory.create(new  Gson())).build();

hay this is a work around not the best practice , from comments down,
Back end should not take this long and user must be notified with error or try again message