public static async Task <DateTime> GetLastWriteTimeUtcAsync(ContentURI uri, string fileURIPath) { DateTime date = GeneralHelpers.GetDateShortNow(); if (await URIAbsoluteExists(uri, fileURIPath) == true) { if (Path.IsPathRooted(fileURIPath)) { date = File.GetLastWriteTimeUtc(fileURIPath); } else { PLATFORM_TYPES ePlatform = uri.URIDataManager.PlatformType; if (ePlatform == PLATFORM_TYPES.azure) { AzureIOAsync azureIO = new AzureIOAsync(uri); CloudBlockBlob blob = await azureIO.GetBlobAsync(fileURIPath); if (blob != null) { //have to fetch the attributes prior to reading them await blob.FetchAttributesAsync(); DateTimeOffset blobdate = blob.Properties.LastModified.Value; //165 fix date = blobdate.UtcDateTime; } } } } return(date); }