diff --git a/src/calibre/devices/kobo/books.py b/src/calibre/devices/kobo/books.py
index 8d58dde892..1d9ccb9a0e 100644
--- a/src/calibre/devices/kobo/books.py
+++ b/src/calibre/devices/kobo/books.py
@@ -28,7 +28,13 @@ class Book(Book_):
         self.size = size # will be set later if None
 
         if ContentType == '6' and date is not None:
-            self.datetime = time.strptime(date, "%Y-%m-%dT%H:%M:%S.%f")
+            try:
+                self.datetime = time.strptime(date, "%Y-%m-%dT%H:%M:%S.%f")
+            except:
+                try:
+                    self.datetime = time.gmtime(os.path.getctime(self.path))
+                except:
+                    self.datetime = time.gmtime()
         else:
             try:
                 self.datetime = time.gmtime(os.path.getctime(self.path))