4 files changed, 31 insertions, 4 deletions
diff --git a/web/app/Style.js b/web/app/Style.js
index c594d92e..aa749ce9 100644
--- a/web/app/Style.js
+++ b/web/app/Style.js
@@ -18,6 +18,7 @@
 Ext.define('Traccar.Style', {
     singleton: true,
 
+    refreshPeriod: 60 * 1000,
     reconnectTimeout: 60 * 1000,
 
     normalPadding: 10,
diff --git a/web/app/view/edit/Devices.js b/web/app/view/edit/Devices.js
index 9393b432..42291f0b 100644
--- a/web/app/view/edit/Devices.js
+++ b/web/app/view/edit/Devices.js
@@ -90,7 +90,7 @@ Ext.define('Traccar.view.edit.Devices', {
 
     columns: {
         defaults: {
-            flex: 2,
+            flex: 1,
             minWidth: Traccar.Style.columnWidthNormal
         },
         items: [{
@@ -132,7 +132,6 @@ Ext.define('Traccar.view.edit.Devices', {
         }, {
             text: Strings.deviceStatus,
             dataIndex: 'status',
-            flex: 1,
             filter: {
                 type: 'list',
                 labelField: 'name',
@@ -151,7 +150,27 @@ Ext.define('Traccar.view.edit.Devices', {
         }, {
             text: Strings.deviceLastUpdate,
             dataIndex: 'lastUpdate',
-            renderer: Traccar.AttributeFormatter.getFormatter('lastUpdate')
+            renderer: function (value, metaData, record) {
+                var status, seconds, interval;
+
+                status = record.get('status');
+                if (status) {
+                    metaData.tdCls = Ext.getStore('DeviceStatuses').getById(status).get('color');
+                }
+
+                if (value) {
+                    seconds = Math.floor((new Date() - value) / 1000);
+                    interval = Math.floor(seconds / 86400);
+                    if (interval > 1) {
+                        return interval + ' ' + Strings.sharedDays;
+                    }
+                    interval = Math.floor(seconds / 3600);
+                    if (interval > 1) {
+                        return interval + ' ' + Strings.sharedHours;
+                    }
+                    return Math.floor(seconds / 60) + ' ' + Strings.sharedMinutes;
+                }
+            }
         }]
     }
 });
diff --git a/web/app/view/edit/DevicesController.js b/web/app/view/edit/DevicesController.js
index 895f0fbd..0d18c186 100644
--- a/web/app/view/edit/DevicesController.js
+++ b/web/app/view/edit/DevicesController.js
@@ -52,10 +52,14 @@ Ext.define('Traccar.view.edit.DevicesController', {
     removeTitle: Strings.sharedDevice,
 
     init: function () {
-        var readonly, deviceReadonly;
+        var self = this, readonly, deviceReadonly;
         deviceReadonly = Traccar.app.getPreference('deviceReadonly', false) && !Traccar.app.getUser().get('admin');
         readonly = Traccar.app.getPreference('readonly', false) && !Traccar.app.getUser().get('admin');
         this.lookupReference('toolbarAddButton').setDisabled(readonly || deviceReadonly);
+
+        setInterval(function () {
+            self.getView().getView().refresh();
+        }, Traccar.Style.refreshPeriod);
     },
 
     onGeofencesClick: function () {
diff --git a/web/l10n/en.json b/web/l10n/en.json
index dc243331..f494978f 100644
--- a/web/l10n/en.json
+++ b/web/l10n/en.json
@@ -17,6 +17,9 @@
     "sharedHour": "Hour",
     "sharedMinute": "Minute",
     "sharedSecond": "Second",
+    "sharedDays": "days",
+    "sharedHours": "hours",
+    "sharedMinutes": "minutes",
     "sharedDecimalDegrees": "Decimal Degrees",
     "sharedDegreesDecimalMinutes": "Degrees Decimal Minutes",
     "sharedDegreesMinutesSeconds": "Degrees Minutes Seconds",