diff --git a/src/core/utils.cpp b/src/core/utils.cpp
index 5346bd4..3ba7122 100644
--- a/src/core/utils.cpp
+++ b/src/core/utils.cpp
@@ -1,51 +1,48 @@
 /*
  * This file is part of LibKGAPI library
  *
  * Copyright (C) 2013  Daniel Vrátil <dvratil@redhat.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  */
 
 #include "utils.h"
 
 #include <QDateTime>
 
 KGAPI2::ContentType Utils::stringToContentType(const QString& contentType)
 {
     if (contentType.contains(QLatin1String("application/json")) ||
         contentType.contains(QLatin1String("text/plain")) ||
         contentType.contains(QLatin1String("text/javascript"))) {
             return KGAPI2::JSON;
      } else if (contentType.contains(QLatin1String("application/atom+xml")) ||
                 contentType.contains(QLatin1String("text/xml"))) {
             return KGAPI2::XML;
     }
 
     return KGAPI2::UnknownContentType;
 }
 
 QString Utils::bool2Str(bool val)
 {
     return (val ? QStringLiteral("true") : QStringLiteral("false"));
 }
 
 QString Utils::ts2Str(quint64 ts)
 {
-    QDateTime dt;
-    dt.setTime_t(ts);
-    dt.setTimeSpec(Qt::UTC);
-    return dt.toString(Qt::ISODate);
+    return QDateTime::fromTime_t(ts, Qt::UTC, 0).toString(Qt::ISODate);
 }