StopwatchUtil.cs

public static class StopwatchUtil
{
    public class StopwatchRecord
    {
        public DateTime StartTime { get; set; }
        public string ActionName { get; set; }
        public TimeSpan Elapsed { get; set; }
        public override string ToString()
        {
            return string.Format("{0} - {1}: {2}", StartTime.ToShortDateString(), ActionName, Elapsed.ToString(@"hh'h'mm'm'ss's.'fffffff'ms'"));
        }
    }

    public static List<StopwatchRecord> StopwatchHistory = new List<StopwatchRecord>();
    public static StopwatchRecord Time(Action action, [CallerMemberName]string name = null)
    {
        var stopwatchRecord = new StopwatchRecord();
        if (Debugger.IsAttached)
        {
            var startTime = DateTime.Now;
            var stopWatch = Stopwatch.StartNew();
            action();
            stopWatch.Stop();
            stopwatchRecord = new StopwatchRecord
            {
                StartTime = startTime,
                ActionName = name,
                Elapsed = stopWatch.Elapsed
            };
            StopwatchHistory.Add(stopwatchRecord);
        }
        else
        {
            action();
        }
        return stopwatchRecord;
    }

    public static void TimeAndWriteToDebug(Action action, [CallerMemberName]string name = null)
    {
        Debug.WriteLine(Time(action, name));
    }
}