using System;
namespace ConsoleApplication_C_Sharp
{
class Program
{
static void Main(string[] args)
{
string s = "2017-01-18";
DateTime dt;
if (DateTime.TryParse(s, out dt))
{
Console.WriteLine(dt);
}
s = "2017-01-40";
if (DateTime.TryParse(s, out dt))
{
Console.WriteLine(dt);
}
}
}
}
/*
run:
18/01/2017 00:00:00
*/