diff --git a/sources/backend/caldav/config.php b/sources/backend/caldav/config.php
index 1257443..7c5c9fa 100644
--- a/sources/backend/caldav/config.php
+++ b/sources/backend/caldav/config.php
@@ -6,7 +6,9 @@
 *
 * Created   :   27.11.2012
 *
-* Copyright 2007 - 2013 Zarafa Deutschland GmbH
+* Copyright 2012 - 2014 Jean-Louis Dupond
+*
+* Jean-Louis Dupond released this code as AGPLv3 here: https://github.com/dupondje/PHP-Push-2/issues/93
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
diff --git a/sources/backend/carddav/carddav.php b/sources/backend/carddav/carddav.php
index 53144e7..21ad6ba 100644
--- a/sources/backend/carddav/carddav.php
+++ b/sources/backend/carddav/carddav.php
@@ -6,7 +6,7 @@
 *
 * Created   :   16.03.2013
 *
-* Copyright 2007 - 2013 Zarafa Deutschland GmbH
+* Copyright 2013 - 2016 Francisco Miguel Biete
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
diff --git a/sources/backend/carddav/config.php b/sources/backend/carddav/config.php
index 2d24cc3..b82b5c9 100644
--- a/sources/backend/carddav/config.php
+++ b/sources/backend/carddav/config.php
@@ -6,7 +6,7 @@
 *
 * Created   :   16.03.2013
 *
-* Copyright 2007 - 2013 Zarafa Deutschland GmbH
+* Copyright 2013 - 2016 Francisco Miguel Biete
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
diff --git a/sources/backend/imap/imap.php b/sources/backend/imap/imap.php
index a3afb12..3c1b7ad 100644
--- a/sources/backend/imap/imap.php
+++ b/sources/backend/imap/imap.php
@@ -1981,8 +1981,8 @@ class BackendIMAP extends BackendDiff implements ISearchProvider {
      */
     private function getSearchRestriction($cpo) {
         $searchText = $cpo->GetSearchFreeText();
-        $searchGreater = $cpo->GetSearchValueGreater();
-        $searchLess = $cpo->GetSearchValueLess();
+        $searchGreater = strftime("%Y-%m-%d", strtotime($cpo->GetSearchValueGreater()));
+        $searchLess = strftime("%Y-%m-%d", strtotime($cpo->GetSearchValueLess()));
 
         $filter = '';
         if ($searchGreater != '') {
diff --git a/sources/backend/ldap/config.php b/sources/backend/ldap/config.php
index 02db4a5..60bbda6 100644
--- a/sources/backend/ldap/config.php
+++ b/sources/backend/ldap/config.php
@@ -6,7 +6,7 @@
 *
 * Created   :   27.11.2012
 *
-* Copyright 2007 - 2012 Zarafa Deutschland GmbH
+* Copyright 2007 - 2015 Zarafa Deutschland GmbH
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,