diff --git a/src/gui/peptide_list_view/peptidelistwindow.cpp b/src/gui/peptide_list_view/peptidelistwindow.cpp
index fd89c31c4566625d1f424570a34e230da7d23ac6..7d5a26a300e4c6377e0baf9632cfa180fc4e5cc4 100644
--- a/src/gui/peptide_list_view/peptidelistwindow.cpp
+++ b/src/gui/peptide_list_view/peptidelistwindow.cpp
@@ -87,6 +87,11 @@ PeptideListWindow::PeptideListWindow(ProjectWindow *parent):
     ui->tableView->setItemDelegateForColumn((std::int8_t) PeptideListColumn::theoretical_mhplus, item_delegate);
     ui->tableView->setItemDelegateForColumn((std::int8_t) PeptideListColumn::experimental_mz, item_delegate);
 
+    
+    MinuteItemDelegate * minute_delegate = new MinuteItemDelegate(ui->tableView);
+    ui->tableView->setItemDelegateForColumn((std::int8_t) PeptideListColumn::rtmin, minute_delegate);
+    SecondItemDelegate * second_delegate = new SecondItemDelegate(ui->tableView);
+    ui->tableView->setItemDelegateForColumn((std::int8_t) PeptideListColumn::rt, second_delegate);
     //connect(ui->tableView, SIGNAL(clicked(const QModelIndex &)), _p_proxy_model, SLOT(onTableClicked(const QModelIndex &)));
 
 
diff --git a/src/gui/protein_list_view/proteinlistwindow.cpp b/src/gui/protein_list_view/proteinlistwindow.cpp
index 1a1db5a327d8c2af4d20aefa1b4c74dcd51b7c2d..ff7b1be9b8f0e8cdd1921bb181adf24e9fe36be6 100644
--- a/src/gui/protein_list_view/proteinlistwindow.cpp
+++ b/src/gui/protein_list_view/proteinlistwindow.cpp
@@ -82,8 +82,8 @@ ProteinListWindow::ProteinListWindow(ProjectWindow *parent):
     ui->tableView->setSortingEnabled(true);
     ui->tableView->setAlternatingRowColors(true);
     
-    PercentItemDelegate * item_delegate = new PercentItemDelegate(ui->tableView);
-    ui->tableView->setItemDelegateForColumn((std::int8_t) ProteinListColumn::coverage, item_delegate);
+    PercentItemDelegate * percent_delegate = new PercentItemDelegate(ui->tableView);
+    ui->tableView->setItemDelegateForColumn((std::int8_t) ProteinListColumn::coverage, percent_delegate);
 
     QSettings settings;
     bool hide = settings.value("proteinview/hidenotvalid", "true").toBool();
diff --git a/src/gui/widgets/massitemdelegate.h b/src/gui/widgets/massitemdelegate.h
index 4d941f864c9a951e348af13d2ed143a4d1edf44b..3ad091051a7ec45990b4f4f5f841d502005a9bf9 100644
--- a/src/gui/widgets/massitemdelegate.h
+++ b/src/gui/widgets/massitemdelegate.h
@@ -31,6 +31,38 @@
 
 #include <QStyledItemDelegate>
 
+class MinuteItemDelegate : public QStyledItemDelegate
+{
+
+    Q_OBJECT
+
+public:
+
+    MinuteItemDelegate(QObject *parent = 0) : QStyledItemDelegate(parent) {}
+
+    QString displayText(const QVariant & value, const QLocale & locale) const override
+    {
+        QString str = QString("%1'").arg(QString::number(value.toDouble(), 'f', 4));
+        return str;
+    }
+};
+
+class SecondItemDelegate : public QStyledItemDelegate
+{
+
+    Q_OBJECT
+
+public:
+
+    SecondItemDelegate(QObject *parent = 0) : QStyledItemDelegate(parent) {}
+
+    QString displayText(const QVariant & value, const QLocale & locale) const override
+    {
+        QString str = QString("%1\"").arg(QString::number(value.toDouble(), 'f', 4));
+        return str;
+    }
+};
+
 class PercentItemDelegate : public QStyledItemDelegate
 {