Days between dates: Difference between revisions

=={{header|C sharp}}==

<lang csharp>using System;

using System.Globalization;

public class Program

{

public static void Main() => WriteLine(DateDiff("1970-01-01", "2019-10-18"));

public static int DateDiff(string d1, string d2) {

var a = DateTime.ParseExact(d1, "yyyy-MM-dd", CultureInfo.InvariantCulture);

var b = DateTime.ParseExact(d2, "yyyy-MM-dd", CultureInfo.InvariantCulture);

return (int)(b - a).TotalDays;

}

}</lang>

{{out}}

<pre>

18187

</pre>