var months = new string[12]; for (var month = 1; month <= 12; month++) { var firstDay = new DateTime(DateTime.Now.Year, month, 1); var name = firstDay.ToString("MMMM", CultureInfo.CreateSpecificCulture("en")); months[month - 1] = name; } foreach (var month in months) { Console.WriteLine($"-> {month}"); }