diff --git a/applets/digital-clock/package/contents/config/main.xml b/applets/digital-clock/package/contents/config/main.xml
--- a/applets/digital-clock/package/contents/config/main.xml
+++ b/applets/digital-clock/package/contents/config/main.xml
@@ -19,9 +19,13 @@
       <default>false</default>
     </entry>
     <entry name="dateFormat" type="string">
-      <label>The date format to display. Options are: shortDate, longDate or isoDate.</label>
+      <label>The date format to display. Options are: shortDate, longDate, isoDate or custom.</label>
       <default>shortDate</default>
     </entry>
+    <entry name="dateFormatStr" type="string">
+      <label>Custom date format string.</label>
+      <default>ddd d</default>
+    </entry>
     <entry name="fontFamily" type="string">
       <label>Font family. e.g "arial". The system font is used if this is not set.</label>
       <default></default>
diff --git a/applets/digital-clock/package/contents/ui/DigitalClock.qml b/applets/digital-clock/package/contents/ui/DigitalClock.qml
--- a/applets/digital-clock/package/contents/ui/DigitalClock.qml
+++ b/applets/digital-clock/package/contents/ui/DigitalClock.qml
@@ -33,14 +33,16 @@
     property bool showSeconds: plasmoid.configuration.showSeconds
     property bool showLocalTimezone: plasmoid.configuration.showLocalTimezone
     property bool showDate: plasmoid.configuration.showDate
-    property int dateFormat: {
-        if (plasmoid.configuration.dateFormat === "longDate") {
-            return  Qt.SystemLocaleLongDate;
+    property var dateFormat: {
+        if (plasmoid.configuration.dateFormat === "custom") {
+            return plasmoid.configuration.dateFormatStr; // str
+        } else if (plasmoid.configuration.dateFormat === "longDate") {
+            return Qt.SystemLocaleLongDate; // int
         } else if (plasmoid.configuration.dateFormat === "isoDate") {
-            return Qt.ISODate;
+            return Qt.ISODate; // int
+        } else { // "shortDate"
+            return Qt.SystemLocaleShortDate; // int
         }
-
-        return Qt.SystemLocaleShortDate;
     }
 
     property string lastSelectedTimezone: plasmoid.configuration.lastSelectedTimezone
diff --git a/applets/digital-clock/package/contents/ui/configAppearance.qml b/applets/digital-clock/package/contents/ui/configAppearance.qml
--- a/applets/digital-clock/package/contents/ui/configAppearance.qml
+++ b/applets/digital-clock/package/contents/ui/configAppearance.qml
@@ -44,6 +44,7 @@
 
     property alias cfg_showDate: showDate.checked
     property string cfg_dateFormat: "shortDate"
+    property alias cfg_dateFormatStr: dateFormatTextField.text
     property alias cfg_use24hFormat: use24hFormat.checked
 
     onCfg_fontFamilyChanged: {
@@ -137,6 +138,10 @@
                 {
                     'label': i18n("ISO Date"),
                     'name': "isoDate"
+                },
+                {
+                    'label': i18nc("custom date format", "Custom"),
+                    'name': "custom"
                 }
             ]
             onCurrentIndexChanged: cfg_dateFormat = model[currentIndex]["name"]
@@ -150,6 +155,42 @@
             }
         }
 
+        QtControls.TextField {
+            id: dateFormatTextField
+            QtLayouts.Layout.fillWidth: true
+            visible: cfg_dateFormat == "custom"
+        }
+
+        QtControls.Label {
+            text: i18n("<a href=\"http://doc.qt.io/qt-5/qml-qtqml-qt.html#formatDateTime-method\">Time Format Documentation</a>")
+            visible: cfg_dateFormat == "custom"
+            wrapMode: Text.Wrap
+            QtLayouts.Layout.preferredWidth: QtLayouts.Layout.maximumWidth
+            QtLayouts.Layout.maximumWidth: units.gridUnit * 16
+
+            onLinkActivated: Qt.openUrlExternally(link)
+            MouseArea {
+                anchors.fill: parent
+                acceptedButtons: Qt.NoButton // We don't want to eat clicks on the Label
+                cursorShape: parent.hoveredLink ? Qt.PointingHandCursor : Qt.ArrowCursor
+            }
+        }
+
+        QtControls.Label {
+            text: i18n("<a href=\"http://doc.qt.io/qt-5/qml-qtquick-text.html#textFormat-prop\">Color Format Documentation</a>")
+            visible: cfg_dateFormat == "custom"
+            wrapMode: Text.Wrap
+            QtLayouts.Layout.preferredWidth: QtLayouts.Layout.maximumWidth
+            QtLayouts.Layout.maximumWidth: units.gridUnit * 16
+
+            onLinkActivated: Qt.openUrlExternally(link)
+            MouseArea {
+                anchors.fill: parent
+                acceptedButtons: Qt.NoButton // We don't want to eat clicks on the Label
+                cursorShape: parent.hoveredLink ? Qt.PointingHandCursor : Qt.ArrowCursor
+            }
+        }
+
         Item {
             Kirigami.FormData.isSection: true
         }