public async Task <IActionResult> ImageProcessingTime() { var recentProcessedImages = await _imagesRepository.GetRecentProcessedImageDates(); if (recentProcessedImages.Count == 0) { return(Ok(new TimeSpan(50000000))); //50m ticks = 5 seconds } var dateTimeDeltas = new List <TimeSpan>(); foreach (var img in recentProcessedImages) { dateTimeDeltas.Add((img.ProcessedDate - img.UploadedDate).Value); } var averageTicks = Convert.ToInt64(dateTimeDeltas.Average(timespan => timespan.Ticks)); return(Ok(new TimeSpan(averageTicks))); }