diff --git a/kcms/dateandtime/dtime.cpp b/kcms/dateandtime/dtime.cpp
--- a/kcms/dateandtime/dtime.cpp
+++ b/kcms/dateandtime/dtime.cpp
@@ -44,7 +44,6 @@
 #include <QDebug>
 #include <kprocess.h>
 #include <kmessagebox.h>
-#include <kdialog.h>
 #include <kconfig.h>
 #include <kcolorscheme.h>
 #include <ksystemtimezone.h>
@@ -93,7 +92,7 @@
   kclock->setMinimumSize(150,150);
   v2->addWidget( kclock );
 
-  v2->addSpacing( KDialog::spacingHint() );
+  v2->addSpacing( style()->pixelMetric(QStyle::PM_DefaultLayoutSpacing) );
 
   QHBoxLayout *v3 = new QHBoxLayout( );
   v2->addLayout( v3 );
@@ -427,7 +426,7 @@
 
     // paint face and glass cache
     QRect faceRect = m_faceCache.rect();
-    QRect targetRect = QRect(QPoint(0, 0), QSize(m_faceCache.width() / devicePixelRatioF(), m_faceCache.height() / devicePixelRatioF()));
+    QRect targetRect = QRect(QPoint(0, 0), QSize(qRound(m_faceCache.width() / devicePixelRatioF()), qRound(m_faceCache.height() / devicePixelRatioF())));
 
     if (m_repaintCache == RepaintAll) {
         m_faceCache.fill(Qt::transparent);
diff --git a/kcms/dateandtime/main.cpp b/kcms/dateandtime/main.cpp
--- a/kcms/dateandtime/main.cpp
+++ b/kcms/dateandtime/main.cpp
@@ -29,7 +29,6 @@
 
 #include <QDBusConnection>
 #include <kaboutdata.h>
-#include <kdialog.h>
 #include <kpluginfactory.h>
 #include <kpluginloader.h>
 #include <kmessagebox.h>
@@ -76,7 +75,7 @@
 
   QVBoxLayout *layout = new QVBoxLayout(this);
   layout->setContentsMargins(0, 0, 0, 0);
-  layout->setSpacing(KDialog::spacingHint());
+  layout->setSpacing(style()->pixelMetric(QStyle::PM_DefaultLayoutSpacing) );
 
   dtime = new Dtime(this, m_haveTimedated);
   layout->addWidget(dtime);