The format DateTime ToString method

Create a new .NET Core console project, type the following code:

the using the System; 

namespace NetCoreDatetime 
{ 
    class Program 
    { 
        static  void the Main ( String [] args) 
        { 
            the DateTime now = the DateTime.Now; // Current Time: 2019-09-25 15: 56 is: 56.673 

            // YYYY year, MM month, dd day, HH (24 hour), mm minutes, ss seconds, fff milliseconds 
            String txtDate = now.ToString ( " YYYY the mM-dd-HH: mm: ss.fff " ); // show: 2019-09-25 15: 56 is: 56.673 

            Console.WriteLine (txtDate); 

            // YYYY year, mM month, dd day, hh (12 hour clock), mm minutes, ss seconds, milliseconds FFF 
            txtDate = now.ToString ( "yyyy-MM-dd hh:mm:ss.fff");//显示：2019-09-25 03:56:56.673

            Console.WriteLine(txtDate);

            Console.WriteLine("Press any key to end...");
            Console.ReadKey();
        }
    }
}

Note formats, differences in uppercase and lowercase hh HH difference between uppercase and lowercase mm MM, do not be confused.

 

references:

Get DateTime.Now with milliseconds precision