diff --git a/MediaBrowser.Api/HttpHandlers/ImageHandler.cs b/MediaBrowser.Api/HttpHandlers/ImageHandler.cs
index 470e39cd23..c45d20b7cc 100644
--- a/MediaBrowser.Api/HttpHandlers/ImageHandler.cs
+++ b/MediaBrowser.Api/HttpHandlers/ImageHandler.cs
@@ -136,7 +136,7 @@ namespace MediaBrowser.Api.HttpHandlers
                 return null;
             }
 
-            return File.GetLastWriteTime(await GetImagePath().ConfigureAwait(false));
+            return File.GetLastWriteTimeUtc(await GetImagePath().ConfigureAwait(false));
         }
 
         private int? Height
diff --git a/MediaBrowser.Api/HttpHandlers/PluginConfigurationHandler.cs b/MediaBrowser.Api/HttpHandlers/PluginConfigurationHandler.cs
index 38c039275c..bf06cbdb0c 100644
--- a/MediaBrowser.Api/HttpHandlers/PluginConfigurationHandler.cs
+++ b/MediaBrowser.Api/HttpHandlers/PluginConfigurationHandler.cs
@@ -2,6 +2,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Net.Handlers;
+using MediaBrowser.Common.Plugins;
 using MediaBrowser.Controller;
 using MediaBrowser.Model.Plugins;
 
@@ -9,13 +10,39 @@ namespace MediaBrowser.Api.HttpHandlers
 {
     public class PluginConfigurationHandler : BaseSerializationHandler<BasePluginConfiguration>
     {
+        private BasePlugin _Plugin = null;
+        private BasePlugin Plugin
+        {
+            get
+            {
+                if (_Plugin == null)
+                {
+                    string name = QueryString["assemblyfilename"];
+
+                    _Plugin = Kernel.Instance.Plugins.First(p => p.AssemblyFileName.Equals(name, StringComparison.OrdinalIgnoreCase));
+                }
+
+                return _Plugin;
+            }
+        }
+
         protected override Task<BasePluginConfiguration> GetObjectToSerialize()
         {
-            string name = QueryString["assemblyfilename"];
+            return Task.FromResult<BasePluginConfiguration>(Plugin.Configuration);
+        }
 
-            BasePluginConfiguration config = Kernel.Instance.Plugins.First(p => p.AssemblyFileName.Equals(name, StringComparison.OrdinalIgnoreCase)).Configuration;
+        public override TimeSpan CacheDuration
+        {
+            get
+            {
+                return TimeSpan.FromDays(7);
+            }
+        }
 
-            return Task.FromResult<BasePluginConfiguration>(config);
+        protected override Task<DateTime?> GetLastDateModified()
+        {
+            return Task.FromResult<DateTime?>(Plugin.ConfigurationDateLastModified);
         }
+
     }
 }
diff --git a/MediaBrowser.Api/HttpHandlers/ServerConfigurationHandler.cs b/MediaBrowser.Api/HttpHandlers/ServerConfigurationHandler.cs
index 175876b4ca..a26a6daf79 100644
--- a/MediaBrowser.Api/HttpHandlers/ServerConfigurationHandler.cs
+++ b/MediaBrowser.Api/HttpHandlers/ServerConfigurationHandler.cs
@@ -1,4 +1,6 @@
-using System.Threading.Tasks;
+using System;
+using System.IO;
+using System.Threading.Tasks;
 using MediaBrowser.Common.Net.Handlers;
 using MediaBrowser.Controller;
 using MediaBrowser.Model.Configuration;
@@ -11,5 +13,18 @@ namespace MediaBrowser.Api.HttpHandlers
         {
             return Task.FromResult<ServerConfiguration>(Kernel.Instance.Configuration);
         }
+
+        public override TimeSpan CacheDuration
+        {
+            get
+            {
+                return TimeSpan.FromDays(7);
+            }
+        }
+
+        protected override Task<DateTime?> GetLastDateModified()
+        {
+            return Task.FromResult<DateTime?>(File.GetLastWriteTimeUtc(Kernel.Instance.ApplicationPaths.SystemConfigurationFilePath));
+        }
     }
 }
diff --git a/MediaBrowser.Common/Net/Handlers/BaseHandler.cs b/MediaBrowser.Common/Net/Handlers/BaseHandler.cs
index 19a1e7af7b..2462833ffb 100644
--- a/MediaBrowser.Common/Net/Handlers/BaseHandler.cs
+++ b/MediaBrowser.Common/Net/Handlers/BaseHandler.cs
@@ -167,7 +167,8 @@ namespace MediaBrowser.Common.Net.Handlers
         {
             HttpListenerContext = ctx;
 
-            Logger.LogInfo("Http Server received request at: " + ctx.Request.Url.ToString());
+            string url = ctx.Request.Url.ToString();
+            Logger.LogInfo("Http Server received request at: " + url);
             Logger.LogInfo("Http Headers: " + string.Join(",", ctx.Request.Headers.AllKeys.Select(k => k + "=" + ctx.Request.Headers[k])));
 
             ctx.Response.AddHeader("Access-Control-Allow-Origin", "*");
@@ -195,10 +196,10 @@ namespace MediaBrowser.Common.Net.Handlers
                 {
                     DateTime ifModifiedSince;
 
-                    if (DateTime.TryParse(ctx.Request.Headers["If-Modified-Since"].Replace(" GMT", string.Empty), out ifModifiedSince))
+                    if (DateTime.TryParse(ctx.Request.Headers["If-Modified-Since"], out ifModifiedSince))
                     {
                         // If the cache hasn't expired yet just return a 304
-                        if (IsCacheValid(ifModifiedSince, cacheDuration, lastDateModified))
+                        if (IsCacheValid(ifModifiedSince.ToUniversalTime(), cacheDuration, lastDateModified))
                         {
                             StatusCode = 304;
                         }
@@ -207,6 +208,8 @@ namespace MediaBrowser.Common.Net.Handlers
 
                 await PrepareResponse().ConfigureAwait(false);
 
+                Logger.LogInfo("Responding with status code {0} for url {1}", StatusCode, url);
+
                 if (IsResponseValid)
                 {
                     bool compressResponse = ShouldCompressResponse(ctx.Response.ContentType) && ClientSupportsCompression;
@@ -295,10 +298,12 @@ namespace MediaBrowser.Common.Net.Handlers
 
         private void CacheResponse(HttpListenerResponse response, TimeSpan duration, DateTime? dateModified)
         {
-            DateTime lastModified = dateModified ?? DateTime.Now;
+            DateTime now = DateTime.UtcNow;
+
+            DateTime lastModified = dateModified ?? now;
 
             response.Headers[HttpResponseHeader.CacheControl] = "public, max-age=" + Convert.ToInt32(duration.TotalSeconds);
-            response.Headers[HttpResponseHeader.Expires] = DateTime.Now.Add(duration).ToString("r");
+            response.Headers[HttpResponseHeader.Expires] = now.Add(duration).ToString("r");
             response.Headers[HttpResponseHeader.LastModified] = lastModified.ToString("r");
         }
 
@@ -334,7 +339,7 @@ namespace MediaBrowser.Common.Net.Handlers
 
             DateTime cacheExpirationDate = ifModifiedSince.Add(cacheDuration);
 
-            if (DateTime.Now < cacheExpirationDate)
+            if (DateTime.UtcNow < cacheExpirationDate)
             {
                 return true;
             }
@@ -347,7 +352,7 @@ namespace MediaBrowser.Common.Net.Handlers
         /// </summary>
         private DateTime NormalizeDateForComparison(DateTime date)
         {
-            return new DateTime(date.Year, date.Month, date.Day, date.Hour, date.Minute, date.Second);
+            return new DateTime(date.Year, date.Month, date.Day, date.Hour, date.Minute, date.Second, date.Kind);
         }
 
         protected virtual long? GetTotalContentLength()
diff --git a/MediaBrowser.Common/Net/Handlers/StaticFileHandler.cs b/MediaBrowser.Common/Net/Handlers/StaticFileHandler.cs
index 799abea9b4..884e398bfd 100644
--- a/MediaBrowser.Common/Net/Handlers/StaticFileHandler.cs
+++ b/MediaBrowser.Common/Net/Handlers/StaticFileHandler.cs
@@ -108,7 +108,7 @@ namespace MediaBrowser.Common.Net.Handlers
 
             if (SourceStream != null)
             {
-                value = File.GetLastWriteTime(Path);
+                value = File.GetLastWriteTimeUtc(Path);
             }
 
             return Task.FromResult<DateTime?>(value);
diff --git a/MediaBrowser.Common/Plugins/BasePlugin.cs b/MediaBrowser.Common/Plugins/BasePlugin.cs
index c03964e6f7..2b7559c59d 100644
--- a/MediaBrowser.Common/Plugins/BasePlugin.cs
+++ b/MediaBrowser.Common/Plugins/BasePlugin.cs
@@ -83,7 +83,7 @@ namespace MediaBrowser.Common.Plugins
                 {
                     if (File.Exists(ConfigurationFilePath))
                     {
-                        _ConfigurationDateLastModified = File.GetLastWriteTime(ConfigurationFilePath);
+                        _ConfigurationDateLastModified = File.GetLastWriteTimeUtc(ConfigurationFilePath);
                     }
                 }
 
diff --git a/MediaBrowser.Common/UI/BaseApplication.cs b/MediaBrowser.Common/UI/BaseApplication.cs
index c7b2916b57..4cbc57c0d3 100644
--- a/MediaBrowser.Common/UI/BaseApplication.cs
+++ b/MediaBrowser.Common/UI/BaseApplication.cs
@@ -35,11 +35,11 @@ namespace MediaBrowser.Common.UI
 
             try
             {
-                DateTime now = DateTime.Now;
+                DateTime now = DateTime.UtcNow;
 
                 await Kernel.Init(progress);
 
-                Logger.LogInfo("Kernel.Init completed in {0} seconds.", (DateTime.Now - now).TotalSeconds);
+                Logger.LogInfo("Kernel.Init completed in {0} seconds.", (DateTime.UtcNow - now).TotalSeconds);
                 splash.Close();
 
                 this.ShutdownMode = System.Windows.ShutdownMode.OnLastWindowClose;
diff --git a/MediaBrowser.Controller/IO/FileData.cs b/MediaBrowser.Controller/IO/FileData.cs
index b9bc7ea757..75069d4d58 100644
--- a/MediaBrowser.Controller/IO/FileData.cs
+++ b/MediaBrowser.Controller/IO/FileData.cs
@@ -188,7 +188,7 @@ namespace MediaBrowser.Controller.IO
             }
         }
 
-        public DateTime CreationTime
+        public DateTime CreationTimeUtc
         {
             get
             {
@@ -196,7 +196,7 @@ namespace MediaBrowser.Controller.IO
             }
         }
 
-        public DateTime LastAccessTime
+        public DateTime LastAccessTimeUtc
         {
             get
             {
@@ -204,7 +204,7 @@ namespace MediaBrowser.Controller.IO
             }
         }
 
-        public DateTime LastWriteTime
+        public DateTime LastWriteTimeUtc
         {
             get
             {
@@ -216,7 +216,7 @@ namespace MediaBrowser.Controller.IO
         {
             long highBits = filetime.dwHighDateTime;
             highBits = highBits << 32;
-            return DateTime.FromFileTime(highBits + (long)filetime.dwLowDateTime);
+            return DateTime.FromFileTimeUtc(highBits + (long)filetime.dwLowDateTime);
         }
 
         public string Path { get; set; }
diff --git a/MediaBrowser.Controller/Library/ItemController.cs b/MediaBrowser.Controller/Library/ItemController.cs
index 26468c6565..a09f634012 100644
--- a/MediaBrowser.Controller/Library/ItemController.cs
+++ b/MediaBrowser.Controller/Library/ItemController.cs
@@ -268,8 +268,8 @@ namespace MediaBrowser.Controller.Library
                 Directory.CreateDirectory(path);
             }
 
-            item.DateCreated = Directory.GetCreationTime(path);
-            item.DateModified = Directory.GetLastAccessTime(path);
+            item.DateCreated = Directory.GetCreationTimeUtc(path);
+            item.DateModified = Directory.GetLastWriteTimeUtc(path);
 
             ItemResolveEventArgs args = new ItemResolveEventArgs();
             args.FileInfo = FileData.GetFileData(path);
diff --git a/MediaBrowser.Controller/Providers/AudioInfoProvider.cs b/MediaBrowser.Controller/Providers/AudioInfoProvider.cs
index 709589cdb4..355344662c 100644
--- a/MediaBrowser.Controller/Providers/AudioInfoProvider.cs
+++ b/MediaBrowser.Controller/Providers/AudioInfoProvider.cs
@@ -276,7 +276,7 @@ namespace MediaBrowser.Controller.Providers
 
                 if (DateTime.TryParse(val, out i))
                 {
-                    return i;
+                    return i.ToUniversalTime();
                 }
             }
 
diff --git a/MediaBrowser.Controller/Resolvers/BaseItemResolver.cs b/MediaBrowser.Controller/Resolvers/BaseItemResolver.cs
index 643580b31c..1f5a6fe831 100644
--- a/MediaBrowser.Controller/Resolvers/BaseItemResolver.cs
+++ b/MediaBrowser.Controller/Resolvers/BaseItemResolver.cs
@@ -88,20 +88,20 @@ namespace MediaBrowser.Controller.Resolvers
 
                 if (childData != null)
                 {
-                    item.DateCreated = childData.Value.CreationTime;
-                    item.DateModified = childData.Value.LastWriteTime;
+                    item.DateCreated = childData.Value.CreationTimeUtc;
+                    item.DateModified = childData.Value.LastWriteTimeUtc;
                 }
                 else
                 {
                     WIN32_FIND_DATA fileData = FileData.GetFileData(item.Path);
-                    item.DateCreated = fileData.CreationTime;
-                    item.DateModified = fileData.LastWriteTime;
+                    item.DateCreated = fileData.CreationTimeUtc;
+                    item.DateModified = fileData.LastWriteTimeUtc;
                 }
             }
             else
             {
-                item.DateCreated = args.FileInfo.CreationTime;
-                item.DateModified = args.FileInfo.LastWriteTime;
+                item.DateCreated = args.FileInfo.CreationTimeUtc;
+                item.DateModified = args.FileInfo.LastWriteTimeUtc;
             }
         }
     }
diff --git a/MediaBrowser.Controller/Xml/BaseItemXmlParser.cs b/MediaBrowser.Controller/Xml/BaseItemXmlParser.cs
index d5fdf640c8..612ba4c7cb 100644
--- a/MediaBrowser.Controller/Xml/BaseItemXmlParser.cs
+++ b/MediaBrowser.Controller/Xml/BaseItemXmlParser.cs
@@ -45,7 +45,7 @@ namespace MediaBrowser.Controller.Xml
                     DateTime added;
                     if (DateTime.TryParse(reader.ReadElementContentAsString() ?? string.Empty, out added))
                     {
-                        item.DateCreated = added;
+                        item.DateCreated = added.ToUniversalTime();
                     }
                     break;
 
@@ -232,7 +232,7 @@ namespace MediaBrowser.Controller.Xml
 
                             if (DateTime.TryParse(firstAired, out airDate) && airDate.Year > 1850)
                             {
-                                item.PremiereDate = airDate;
+                                item.PremiereDate = airDate.ToUniversalTime();
                                 item.ProductionYear = airDate.Year;
                             }
                         }
diff --git a/MediaBrowser.Model/Entities/BaseItem.cs b/MediaBrowser.Model/Entities/BaseItem.cs
index 808ef5ad89..7751207425 100644
--- a/MediaBrowser.Model/Entities/BaseItem.cs
+++ b/MediaBrowser.Model/Entities/BaseItem.cs
@@ -131,7 +131,7 @@ namespace MediaBrowser.Model.Entities
         /// </summary>
         public bool IsRecentlyAdded(User user)
         {
-            return (DateTime.Now - DateCreated).TotalDays < user.RecentItemDays;
+            return (DateTime.UtcNow - DateCreated).TotalDays < user.RecentItemDays;
         }
 
         public void AddPerson(PersonInfo person)