Log event datetime with.Net Core Console logger

The feature was added into version 3 of the Microsoft.Extensions.Logging.Console(here is the pr). You can activate this with setting the TimestampFormat:

  new ServiceCollection()
     .AddLogging(opt =>
     {
         opt.AddConsole(c =>
         {
            c.TimestampFormat = "[HH:mm:ss] ";
         });
    })