using System;
using System.Globalization;
 
public class Test
{
	public static void Main()
	{
		// your code goes here
		string[] a = new string[] {
			"14.12.2016 6:20:21",
    		"15.12.2016 8:30:00",
    		"16.12.2016 12:30:00",
    		"17.12.2016 14:33:00",
    		"18.12.2016 18:10:00",
		};
	    foreach(string dt in a)
	    {
	        Console.WriteLine(
			    DateTime.ParseExact(dt, "dd.MM.yyyy H:mm:ss", CultureInfo.InvariantCulture)
			);
	    }
	}
}

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