format a date in to the format month day, year hour:minute:second.fff am/pm in csharp

You can format a DateTime value to the format month day, year hour:minute:second.fff am/pm in C# by using the ToString() method with a custom date and time format string. Here's an example:

main.cs
DateTime dateTime = DateTime.Now;
string formattedDateTime = dateTime.ToString("MMMM dd, yyyy h:mm:ss.fff tt");
Console.WriteLine(formattedDateTime);
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In the ToString() method, we pass a custom date and time format string as a parameter. The format string MMMM dd, yyyy h:mm:ss.fff tt specifies that the month should be spelled out in full, followed by the day of the month with a leading zero, followed by the year in four digits, followed by the hour in 12-hour format with a leading zero, followed by the minute with a leading zero, followed by the second with a leading zero, followed by the fractional second with three digits, followed by the AM/PM designator in lowercase.

This will output the current date and time in the desired format, for example:

main.cs
August 23, 2021 10:43:27.123 AM
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