Full Date Long Time ("F") Format Specifier in C#

The Full Date Long Time standard format specifier’s custom date and time format string is defined by the current DateTimeFormatInfo.FullDateTimePattern property.

The custom format string is −

dddd, dd MMMM yyyy HH:mm:ss

Example

 Live Demo

using System;
using System.Globalization;
class Demo {
   static void Main() {
      DateTime myDate = new DateTime(2018, 8, 13, 9, 15, 0);
      Console.WriteLine(myDate.ToString("F", CultureInfo.CreateSpecificCulture("en-US")));
   }
}

Output

Monday, August 13, 2018 9:15:00 AM