using System;

using System.Globalization;

public class Program {

    public static void Main() {

        var dtSolicitacao = "27/08/215 09:06:33";

        var horario = DateTime.Parse(dtSolicitacao, CultureInfo.GetCultureInfo("pt-BR")).TimeOfDay;

        Console.WriteLine(horario);

        DateTime horario2;

        if (DateTime.TryParse(dtSolicitacao, CultureInfo.GetCultureInfo("pt-BR"), DateTimeStyles.None, out horario2)) {

            Console.WriteLine(horario2.TimeOfDay);

        } else {

            Console.WriteLine("deu erro");

        }

    }

}