diff --git a/qml/js/tides.js b/qml/js/tides.js
index 5992537..93316e1 100644
--- a/qml/js/tides.js
+++ b/qml/js/tides.js
@@ -169,8 +169,8 @@ function fmtHM(t) {
 }
 
 // Formato data breve
-function fmtDate(t) {
+function fmtDate(t, dn) {
     var d = new Date(t);
-    var giorni = ["Dom", "Lun", "Mar", "Mer", "Gio", "Ven", "Sab"];
-    return giorni[d.getDay()] + " " + (d.getDate() < 10 ? "0" : "") + d.getDate() + "/" + ((d.getMonth() + 1) < 10 ? "0" : "") + (d.getMonth() + 1);
+    var days = dn || ["Dom", "Lun", "Mar", "Mer", "Gio", "Ven", "Sab"];
+    return days[d.getDay()] + " " + (d.getDate() < 10 ? "0" : "") + d.getDate() + "/" + ((d.getMonth() + 1) < 10 ? "0" : "") + (d.getMonth() + 1);
 }
diff --git a/qml/pages/CalendarPage.qml b/qml/pages/CalendarPage.qml
index e1b8d26..2c98fa3 100644
--- a/qml/pages/CalendarPage.qml
+++ b/qml/pages/CalendarPage.qml
@@ -8,6 +8,14 @@ Page {
 
     property var port
 
+    // abbreviazioni giorni localizzate (context unico "Tide")
+    property var dayNames: [
+        qsTranslate("Tide", "Sun"), qsTranslate("Tide", "Mon"),
+        qsTranslate("Tide", "Tue"), qsTranslate("Tide", "Wed"),
+        qsTranslate("Tide", "Thu"), qsTranslate("Tide", "Fri"),
+        qsTranslate("Tide", "Sat")
+    ]
+
     SilicaListView {
         id: list
         anchors.fill: parent
@@ -82,7 +90,7 @@ Page {
         for (var g = 0; g < 30; g++) {
             var d = new Date(now.getFullYear(), now.getMonth(), now.getDate() + g)
             var ex = Tides.extrema(port, d, 1)
-            dayModel.append({ isDay: true, day: Tides.fmtDate(d.getTime()),
+            dayModel.append({ isDay: true, day: Tides.fmtDate(d.getTime(), page.dayNames),
                               time: "", kind: "", height: "" })
             for (var i = 0; i < ex.length; i++) {
                 dayModel.append({ isDay: false, day: "",
diff --git a/qml/pages/DetailPage.qml b/qml/pages/DetailPage.qml
index 9206f61..3e5f500 100644
--- a/qml/pages/DetailPage.qml
+++ b/qml/pages/DetailPage.qml
@@ -69,7 +69,7 @@ Page {
             for (var i = 0; i < n; i++) {
                 eventsModel.append({
                     kind: ex[i].kind,
-                    date: Tides.fmtDate(ex[i].t),
+                    date: Tides.fmtDate(ex[i].t, page.dayNames),
                     time: Tides.fmtHM(ex[i].t),
                     height: Tides.fmtH(ex[i].h, unit)
                 })
@@ -101,6 +101,14 @@ Page {
         qsTr("Full moon"), qsTr("Waning gibbous"), qsTr("Last quarter"), qsTr("Waning crescent")
     ]
 
+    // abbreviazioni giorni localizzate (context unico "Tide")
+    property var dayNames: [
+        qsTranslate("Tide", "Sun"), qsTranslate("Tide", "Mon"),
+        qsTranslate("Tide", "Tue"), qsTranslate("Tide", "Wed"),
+        qsTranslate("Tide", "Thu"), qsTranslate("Tide", "Fri"),
+        qsTranslate("Tide", "Sat")
+    ]
+
     SilicaFlickable {
         id: flick
         anchors.fill: parent
@@ -203,7 +211,7 @@ Page {
                     onClicked: {
                         var t = page.port ? Tides.tide(page.port, new Date(nowBase + (mouse.x / width) * (page.days * 86400000))) : 0
                         var d = new Date(nowBase + (mouse.x / width) * (page.days * 86400000))
-                        tip.text = Tides.fmtDate(d.getTime()) + " " + Tides.fmtHM(d.getTime()) + " → " + Tides.fmtH(t, page.unit)
+                        tip.text = Tides.fmtDate(d.getTime(), page.dayNames) + " " + Tides.fmtHM(d.getTime()) + " → " + Tides.fmtH(t, page.unit)
                         tip.visible = true
                         tipTimer.restart()
                     }
diff --git a/translations/harbour-tide.ts b/translations/harbour-tide.ts
index 4585c9d..03ad9dc 100644
--- a/translations/harbour-tide.ts
+++ b/translations/harbour-tide.ts
@@ -74,4 +74,14 @@
     <name>CalendarPage</name>
     <message><source>Next 30 days — high and low tides</source><translation type="unfinished"></translation></message>
 </context>
+<context>
+    <name>Tide</name>
+    <message><source>Sun</source><translation type="unfinished"></translation></message>
+    <message><source>Mon</source><translation type="unfinished"></translation></message>
+    <message><source>Tue</source><translation type="unfinished"></translation></message>
+    <message><source>Wed</source><translation type="unfinished"></translation></message>
+    <message><source>Thu</source><translation type="unfinished"></translation></message>
+    <message><source>Fri</source><translation type="unfinished"></translation></message>
+    <message><source>Sat</source><translation type="unfinished"></translation></message>
+</context>
 </TS>
diff --git a/translations/harbour-tide_it.ts b/translations/harbour-tide_it.ts
index dfc4bb3..61e43fc 100644
--- a/translations/harbour-tide_it.ts
+++ b/translations/harbour-tide_it.ts
@@ -74,4 +74,14 @@
     <name>CalendarPage</name>
     <message><source>Next 30 days — high and low tides</source><translation>Prossimi 30 giorni — alte e basse maree</translation></message>
 </context>
+<context>
+    <name>Tide</name>
+    <message><source>Sun</source><translation>Dom</translation></message>
+    <message><source>Mon</source><translation>Lun</translation></message>
+    <message><source>Tue</source><translation>Mar</translation></message>
+    <message><source>Wed</source><translation>Mer</translation></message>
+    <message><source>Thu</source><translation>Gio</translation></message>
+    <message><source>Fri</source><translation>Ven</translation></message>
+    <message><source>Sat</source><translation>Sab</translation></message>
+</context>
 </TS>