diff --git a/src/com/owncloud/android/lib/common/network/WebdavUtils.java b/src/com/owncloud/android/lib/common/network/WebdavUtils.java
index b5b3607c..a285e13f 100644
--- a/src/com/owncloud/android/lib/common/network/WebdavUtils.java
+++ b/src/com/owncloud/android/lib/common/network/WebdavUtils.java
@@ -35,15 +35,17 @@ import android.net.Uri;
 public class WebdavUtils {
     public static final SimpleDateFormat DISPLAY_DATE_FORMAT = new SimpleDateFormat(
             "dd.MM.yyyy hh:mm");
-    private static final String DATETIME_FORMATS[] = {
-            "yyyy-MM-dd'T'HH:mm:ss'Z'",
-            "EEE, dd MMM yyyy HH:mm:ss zzz",
-            "yyyy-MM-dd'T'HH:mm:ss.sss'Z'",
-            "yyyy-MM-dd'T'HH:mm:ssZ",
-            "EEE MMM dd HH:mm:ss zzz yyyy",
-            "EEEEEE, dd-MMM-yy HH:mm:ss zzz",
-            "EEE MMMM d HH:mm:ss yyyy",
-            "yyyy-MM-dd hh:mm:ss" };
+    
+    private static final SimpleDateFormat DATETIME_FORMATS[] = {
+    	new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US),
+    	new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US),	
+		new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.sss'Z'", Locale.US),
+		new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.US),
+		new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US),
+		new SimpleDateFormat("EEEEEE, dd-MMM-yy HH:mm:ss zzz", Locale.US),
+		new SimpleDateFormat("EEE MMMM d HH:mm:ss yyyy", Locale.US),
+		new SimpleDateFormat("yyyy-MM-dd hh:mm:ss", Locale.US)
+	};
 
     public static String prepareXmlForPropFind() {
         String ret = "<?xml version=\"1.0\" ?><D:propfind xmlns:D=\"DAV:\"><D:allprop/></D:propfind>";
@@ -56,11 +58,16 @@ public class WebdavUtils {
 
     public static Date parseResponseDate(String date) {
         Date returnDate = null;
+        SimpleDateFormat format = null;
         for (int i = 0; i < DATETIME_FORMATS.length; ++i) {
             try {
-                returnDate = new SimpleDateFormat (DATETIME_FORMATS[i], Locale.US).parse(date);
+            	format = DATETIME_FORMATS[i];
+            	synchronized(format) {
+            		returnDate = format.parse(date);
+            	}
                 return returnDate;
             } catch (ParseException e) {
+            	// this is not the format
             }
         }
         return null;