diff --git a/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs b/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
index 302bae8dd..510f69d8a 100644
--- a/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
+++ b/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
@@ -1,17 +1,19 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Net;
+using System.Threading;
 using FluentAssertions;
+using Moq;
+using NLog;
 using NUnit.Framework;
 using NzbDrone.Common.Cache;
 using NzbDrone.Common.Http;
+using NzbDrone.Common.Http.Dispatchers;
+using NzbDrone.Common.TPL;
 using NzbDrone.Test.Common;
 using NzbDrone.Test.Common.Categories;
-using NLog;
-using NzbDrone.Common.TPL;
-using Moq;
-using NzbDrone.Common.Http.Dispatchers;
 
 namespace NzbDrone.Common.Test.Http
 {
@@ -309,30 +311,43 @@ namespace NzbDrone.Common.Test.Http
                 .Verify(v => v.PostResponse(It.IsAny<HttpResponse>()), Times.Once());
         }
 
-        public void should_parse_malformed_cloudflare_cookie()
+        [TestCase("en-US")]
+        [TestCase("es-ES")]
+        public void should_parse_malformed_cloudflare_cookie(string culture)
         {
-            // the date is bad in the below - should be 13-Jul-2016
-            string malformedCookie = @"__cfduid=d29e686a9d65800021c66faca0a29b4261436890790; expires=Wed, 13-Jul-16 16:19:50 GMT; path=/; HttpOnly";
-            string url = "http://eu.httpbin.org/response-headers?Set-Cookie=" +
-                System.Uri.EscapeUriString(malformedCookie);
+            var origCulture = Thread.CurrentThread.CurrentCulture;
+            Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(culture);
+            Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(culture);
+            try
+            {
+                // the date is bad in the below - should be 13-Jul-2016
+                string malformedCookie = @"__cfduid=d29e686a9d65800021c66faca0a29b4261436890790; expires=Wed, 13-Jul-16 16:19:50 GMT; path=/; HttpOnly";
+                string url = "http://eu.httpbin.org/response-headers?Set-Cookie=" +
+                    System.Uri.EscapeUriString(malformedCookie);
 
-            var requestSet = new HttpRequest(url);
-            requestSet.AllowAutoRedirect = false;
-            requestSet.StoreResponseCookie = true;
+                var requestSet = new HttpRequest(url);
+                requestSet.AllowAutoRedirect = false;
+                requestSet.StoreResponseCookie = true;
 
-            var responseSet = Subject.Get(requestSet);
+                var responseSet = Subject.Get(requestSet);
 
-            var request = new HttpRequest("http://eu.httpbin.org/get");
+                var request = new HttpRequest("http://eu.httpbin.org/get");
 
-            var response = Subject.Get<HttpBinResource>(request);
+                var response = Subject.Get<HttpBinResource>(request);
 
-            response.Resource.Headers.Should().ContainKey("Cookie");
+                response.Resource.Headers.Should().ContainKey("Cookie");
 
-            var cookie = response.Resource.Headers["Cookie"].ToString();
+                var cookie = response.Resource.Headers["Cookie"].ToString();
 
-            cookie.Should().Contain("__cfduid=d29e686a9d65800021c66faca0a29b4261436890790");
+                cookie.Should().Contain("__cfduid=d29e686a9d65800021c66faca0a29b4261436890790");
 
-            ExceptionVerification.IgnoreErrors();
+                ExceptionVerification.IgnoreErrors();
+            }
+            finally
+            {
+                Thread.CurrentThread.CurrentCulture = origCulture;
+                Thread.CurrentThread.CurrentUICulture = origCulture;
+            }
         }
     }
 
diff --git a/src/NzbDrone.Common/Http/Dispatchers/CurlHttpDispatcher.cs b/src/NzbDrone.Common/Http/Dispatchers/CurlHttpDispatcher.cs
index 2bd3f1bd2..cdcea3aae 100644
--- a/src/NzbDrone.Common/Http/Dispatchers/CurlHttpDispatcher.cs
+++ b/src/NzbDrone.Common/Http/Dispatchers/CurlHttpDispatcher.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
@@ -175,9 +176,15 @@ namespace NzbDrone.Common.Http.Dispatchers
             // fix up the date if it was malformed
             var setCookieClean = ExpiryDate.Replace(setCookie, delegate(Match match)
             {
-                string format = "ddd, dd-MMM-yyyy HH:mm:ss";
-                DateTime dt = Convert.ToDateTime(match.Groups[2].Value);
-                return match.Groups[1].Value + dt.ToUniversalTime().ToString(format) + " GMT";
+                string shortFormat = "ddd, dd-MMM-yy HH:mm:ss";
+                string longFormat = "ddd, dd-MMM-yyyy HH:mm:ss";
+                DateTime dt;
+                if (DateTime.TryParseExact(match.Groups[2].Value, longFormat, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out dt) ||
+                    DateTime.TryParseExact(match.Groups[2].Value, shortFormat, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out dt) ||
+                    DateTime.TryParse(match.Groups[2].Value, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out dt))
+                    return match.Groups[1].Value + dt.ToUniversalTime().ToString(longFormat, CultureInfo.InvariantCulture) + " GMT";
+                else
+                    return match.Value;
             });
             return setCookieClean;
         }