Gist based on Lance Larsen article http://lancelarsen.com/stopwatchlog-easy-method-timing-in-c/

DateTimeExtentions.cs

public static class DateTimeExtentions
{
  public static string ToDateTimeHighPrecision(this DateTime source)
  {
    return source.ToString("MM/dd/yyyy h:mm:ss.fff tt");
  }
}

Measurement.cs

public struct Measurement
{
  public string Text { get; set; }

  public long ElapsedMilliseconds { get; set; }

  public DateTime Time { get; set; }

  public Measurement(string text, DateTime time, long elapsedMilliseconds)
  {
    Text = text;
    ElapsedMilliseconds = elapsedMilliseconds;
    Time = time;
  }
}

StopwatchLog.cs

/// <summary>
///  Collects information about executing method and logs metrics 
///     when the stopwatch log is disposed.
/// </summary>
/// <example>
///   using (StopwatchLog.Track())
///   {
///     // Code here...
///   }
/// </example>
public sealed class StopwatchLog : IDisposable
{
  public string Text { get; set; }
  public Stopwatch Stopwatch { get; set; }
  public DateTime StopwatchStart { get; set; }
  public DateTime StopwatchStop { get; set; }
  public List<Measurement> Measurements { get; set; } = new List<Measurement>();

  private StopwatchLog(string text)
  {
    Text = text;
    StopwatchStart = DateTime.UtcNow;
    Stopwatch = Stopwatch.StartNew();
  }

  void IDisposable.Dispose()
  {
    Stopwatch.Stop();
    StopwatchStop = DateTime.UtcNow;
    LogMetrics();
  }

  private void LogMetrics()
  {
    Console.WriteLine("{0} | Started: {1} | Ended {2} | Elapsed {3} ms",
      Text,
      StopwatchStart.ToDateTimeHighPrecision(),
      StopwatchStop.ToDateTimeHighPrecision(),
      Stopwatch.ElapsedMilliseconds);
  }

  public static StopwatchLog Track(string text)
  {
    return new StopwatchLog(text);
  }

  public void Measure(string text)
  {
    Measurements.Add(new Measurement(text, DateTime.UtcNow, Stopwatch.ElapsedMilliseconds));
    Stopwatch.Restart();
  }
}