diff --git a/_config.yml b/_config.yml
new file mode 100644
index 000000000..c74188174
--- /dev/null
+++ b/_config.yml
@@ -0,0 +1 @@
+theme: jekyll-theme-slate
\ No newline at end of file
diff --git a/apps.json b/apps.json
index 7ec25b67f..d5e301251 100644
--- a/apps.json
+++ b/apps.json
@@ -171,7 +171,7 @@
   { "id": "setting",
     "name": "Settings",
     "icon": "settings.png",
-    "version":"0.22",
+    "version":"0.23",
     "description": "A menu for setting up Bangle.js",
     "tags": "tool,system",
     "readme": "README.md",
@@ -2621,6 +2621,25 @@
     {"name":"lifeclk.img","url":"app-icon.js","evaluate":true}
   ]
 },
+{ "id": "speedalt",
+  "name": "GPS Speedo and Altimeter",
+  "shortName":"GPS Speed Alt",
+  "icon": "app.png",
+  "version":"0.07",
+  "description": "GPS speed and altitude display. Designed for easy viewing and use during outdoor activities such as para-gliding, hang-gliding, sailing, cycling etc.",
+  "tags": "tool,outdoors",
+  "type":"app",
+  "allow_emulator":true,
+  "readme": "README.md",
+  "storage": [
+    {"name":"speedalt.app.js","url":"app.js"},
+    {"name":"speedalt.img","url":"app-icon.js","evaluate":true},
+    {"name":"speedalt.settings.js","url":"settings.js"}
+  ],
+ "data": [
+      {"name":"speedalt.json"}
+    ]
+},
 { "id": "de-stress",
   "name": "De-Stress",
   "shortName":"De-Stress",
diff --git a/apps/setting/ChangeLog b/apps/setting/ChangeLog
index 229337dc9..bb47dfe4a 100644
--- a/apps/setting/ChangeLog
+++ b/apps/setting/ChangeLog
@@ -25,3 +25,4 @@
 0.21: Add passkey pairing option (BETA)
       Add whitelist option (fix #78)
 0.22: Move HID to BLE menu
+0.23: Change max time offset to 13 for NZ summer daylight time (NZDT)
diff --git a/apps/setting/settings.js b/apps/setting/settings.js
index 6e766afd4..8e839bdb1 100644
--- a/apps/setting/settings.js
+++ b/apps/setting/settings.js
@@ -327,7 +327,7 @@ function showLocaleMenu() {
     'Time Zone': {
       value: settings.timezone,
       min: -11,
-      max: 12,
+      max: 13,
       step: 0.5,
       onchange: v => {
         settings.timezone = v || 0;
diff --git a/apps/speedalt/ChangeLog b/apps/speedalt/ChangeLog
new file mode 100644
index 000000000..258b5051a
--- /dev/null
+++ b/apps/speedalt/ChangeLog
@@ -0,0 +1,7 @@
+0.01 : Initial import.
+0.02 : Misc development.
+0.03 : Enable screen off.
+0.04 : Vibrate once on no fix, twice on fix.
+0.05 : Add setting to turn vibrate on/off.
+0.06 : Tweaks to vibration settings.
+0.07 : Switch to BTN1 for Max toggle and reset function.
diff --git a/apps/speedalt/README.md b/apps/speedalt/README.md
new file mode 100644
index 000000000..e1d00653e
--- /dev/null
+++ b/apps/speedalt/README.md
@@ -0,0 +1,18 @@
+Displays the GPS speed and altitude. One is displayed on the watch face using the largest possible characters depending on the number of digits. The other is in a smaller characters below that. Both are always visible. You can display the current or maximum observed speed/altitude values. Current time is always displayed. 
+
+Display Tap : Swaps the displays. You can have either speed or altitude on the large primary display.
+
+BTN1 : Short press < 2 secs toggles the displays between showing the current speed/alt values or the maximum values recorded.
+
+BTN1 : Long press > 2 secs resets the recorded maximum values.
+
+App Settings : Select the desired display units. Speed can be as per the default locale, kph, knots, mph or m/s. Altitude can be feet or metres. Select one of three colour schemes. Colours, high contrast (all white on black) or night ( all red on black ). Vibration can be used to indicate when a fix is lost or gained. One buzz for a lost fix and a double buzz when a fix is found.
+
+![](screen1.png)
+![](screen2.png)
+![](screen3.png)
+![](screen4.png)
+
+Developed for my use in sailing, cycling and motorcycling. If you find this software useful or have feedback drop me a line mike[at]kereru.com. Enjoy!
+
+( Many thanks to Gordon Williams. Awesome job. )
diff --git a/apps/speedalt/app-icon.js b/apps/speedalt/app-icon.js
new file mode 100644
index 000000000..6c03df55b
--- /dev/null
+++ b/apps/speedalt/app-icon.js
@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("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"))
diff --git a/apps/speedalt/app.js b/apps/speedalt/app.js
new file mode 100644
index 000000000..7ccb20935
--- /dev/null
+++ b/apps/speedalt/app.js
@@ -0,0 +1,408 @@
+/*
+Speed and Altitude [speedalt]
+Ver : 0.07
+Mike Bennett mike[at]kereru.com
+*/
+
+const dbg = 0;
+
+var buf = Graphics.createArrayBuffer(240,160,2,{msb:true});
+
+// Load fonts
+require("Font7x11Numeric7Seg").add(Graphics);
+
+/*
+var mainmenu = {
+  "" : { "title" : "-- Units --" },
+  "default" : function() { setUnits(0,''); },
+  "Kph (spd)" : function() { setUnits(1,'kph'); },
+  "Knots (spd)" : function() { setUnits(1.852,'knots'); },
+  "Mph (spd)" : function() { setUnits(1.60934,'mph'); },
+  "m/s (spd)" : function() { setUnits(3.6,'m/s'); },
+  "Meters (alt)" : function() { setUnitsAlt(1,'m'); },
+  "Feet (alt)" : function() { setUnitsAlt(0.3048,'feet'); },
+  "Exit" : function() { exitMenu(); }, // remove the menu and restore
+};
+*/
+
+var lastFix = {fix:0,satellites:0};
+var showSpeed = 1;      // 1 = Speed in primary display. 0 = alt in primary
+var showMax = 0;        // 1 = display the max values. 0 = display the cur fix
+var maxPress = 0;      // Time max button pressed. Used to calculate short or long press.
+var canDraw = 1;
+var lastBuzz = 0;      // What sort of buzz was last performed. 0 = no fix, 1 = fix. 
+var timerBuzz2 = 0;    // ID of timer for fix second buzz
+var time = '';    // Last time string displayed. Re displayed in background colour to remove before drawing new time.
+
+var max = {};
+max.spd = 0;
+max.alt = 0;
+
+var emulator = 0;
+if (process.env.BOARD=="EMSCRIPTEN") emulator = 1;  // 1 = running in emulator. Supplies test values;
+
+function drawFix(speed,units,sats,alt,alt_units) {
+  if (!canDraw) return;
+
+  buf.clear();
+  
+  var val = '';  
+  var u='';
+  
+  // Primary Display
+  val = speed.toString();
+  if ( !showSpeed ) val = alt.toString();
+  
+  // Primary Units
+  u = settings.spd_unit;
+  if ( !showSpeed ) u = alt_units;
+
+  drawPrimary(val,u);
+  
+  // Secondary Display
+  val = alt.toString();
+  if ( !showSpeed ) val = speed.toString();
+
+  // Secondary Units
+  u = alt_units;
+  if ( !showSpeed ) u = settings.spd_unit;
+  
+  drawSecondary(val,u);
+  
+  // Time
+  drawTime();
+  
+  //Sats
+  drawSats(sats);
+
+  g.reset();
+  g.drawImage(img,0,40);
+//  g.flip();
+
+  
+}
+
+
+function drawNoFix(sats) {
+  if (!canDraw) return;
+  var u;
+
+  buf.clear();
+
+  buf.setFontAlign(0,0);
+  buf.setColor(3);  
+  
+  buf.setFontVector(25);
+  buf.drawString("Waiting for GPS",120,56);
+
+  // Time
+  drawTime();
+  
+  //Sats
+  drawSats(sats);
+
+  g.reset();
+  g.drawImage(img,0,40);
+//  g.flip();
+
+  
+}
+
+function drawPrimary(n,u) {
+ 
+  // Primary Display
+  
+  var s=40;    // Font size
+  if ( n.length <= 7 ) s=48;
+  if ( n.length <= 6 ) s=55;
+  if ( n.length <= 5 ) s=68;
+  if ( n.length <= 4 ) s=85;
+  if ( n.length <= 3 ) s=110;
+        
+  buf.setFontAlign(0,-1); //Centre 
+  buf.setColor(1);  
+
+  buf.setFontVector(s);
+  buf.drawString(n,110,0);
+    
+    // Primary Units
+  buf.setFontAlign(1,-1,3); //right
+  buf.setColor(2);  
+  buf.setFontVector(25);
+  buf.drawString(u,210,0);  
+}
+
+function drawSecondary(n,u) {
+
+  var s=180;    // units X position
+  if ( n.length <= 5 ) s=155;
+  if ( n.length <= 4 ) s=125;
+  if ( n.length <= 3 ) s=100;
+  if ( n.length <= 2 ) s=65;
+  if ( n.length <= 1 ) s=35;
+  
+  buf.setFontAlign(-1,1); //left, bottom 
+  buf.setColor(1);  
+  buf.setFontVector(45);
+  buf.drawString(n,5,140);
+    
+  // Secondary Units
+  buf.setFontAlign(-1,1); //left, bottom
+  buf.setColor(2);  
+  buf.setFontVector(25);
+  buf.drawString(u,s,135);
+}
+
+
+function drawTime() {
+  var x = 0;
+  var y = 160;
+
+  buf.setFont("7x11Numeric7Seg", 2);
+  buf.setFontAlign(-1,1); //left, bottom
+
+  buf.setColor(0);
+  buf.drawString(time,x,y);
+  time = require("locale").time(new Date(),1);
+  buf.setColor(3);  
+  buf.drawString(time,x,y);
+}
+
+function drawSats(sats) {
+  buf.setFontAlign(1,1); //right, bottom
+  buf.setColor(3);  
+  buf.setFont("6x8", 2);
+  if ( showMax ) {
+    buf.setColor(2); 
+    buf.drawString("MAX",240,160);
+  }
+  else buf.drawString("Sats:"+sats,240,160);  
+}
+
+function onGPS(fix) {
+  lastFix = fix;
+  
+  var m;
+
+  if (fix.fix || emulator) {
+    doBuzz(1);
+
+    //==== Speed ====
+    if ( settings.spd == 0 ) {
+      var strSpeed = require("locale").speed(fix.speed);
+      m = strSpeed.match(/([0-9,\.]+)(.*)/); // regex splits numbers from units
+
+      if ( emulator ) {
+        speed = '125';  //testing only
+        settings.spd_unit = 'kph';
+      }
+      else {
+        speed = m[1];
+        settings.spd_unit = m[2];
+      }
+    }
+    // Calculate for selected units
+    else {
+      speed = fix.speed;
+      if ( emulator ) speed = '100';
+      speed = Math.round(parseFloat(speed)/parseFloat(settings.spd),0);
+    }
+    
+    // ==== Altitude ====
+    alt = fix.alt;
+    if ( emulator ) alt = '360';
+    alt = Math.round(parseFloat(alt)/parseFloat(settings.alt),0);
+    
+    // Record max values
+    if (parseFloat(speed) > parseFloat(max.spd) ) max.spd = parseFloat(speed);
+    if (parseFloat(alt) > parseFloat(max.alt) ) max.alt = parseFloat(alt);
+    
+    if ( showMax ) drawFix(max.spd,settings.spd_unit,fix.satellites,max.alt,settings.alt_unit);
+    else drawFix(speed,settings.spd_unit,fix.satellites,alt,settings.alt_unit);
+
+  } else {
+    doBuzz(0);
+    drawNoFix(fix.satellites);
+  }
+
+}
+
+// Vibrate watch when fix lost or gained.
+function doBuzz(hasFix) {
+
+  // nothing to do
+  if ( lastBuzz === hasFix || !settings.buzz ) {
+    return;
+  }
+  
+  // fix gained - double buzz
+  if ( !lastBuzz && hasFix ) {
+    if ( dbg ) print('Fix');
+    lastBuzz = 1;
+    Bangle.buzz();
+    timerBuzz2 = setInterval(doBuzz2, 600); // Trigger a second buzz
+    return;
+  }
+  
+  // fix lost - single buzz
+  if ( lastBuzz && !hasFix ) {
+    if ( dbg ) print('Fix lost');
+    lastBuzz = 0;
+    Bangle.buzz();
+    return;
+  }
+  
+  
+}
+
+// Second buzz
+function doBuzz2() {
+    if ( dbg ) print('Buzz2');
+    clearInterval(timerBuzz2);
+    Bangle.buzz();
+ }
+
+function toggleDisplay() {
+  showSpeed = !showSpeed;
+  onGPS(lastFix);  // Back to Speed display
+}
+
+function toggleMax() {
+//  if ( inMenu ) return;
+  showMax = !showMax;
+  onGPS(lastFix);  // Back to Speed display
+}
+
+function setButtons(){
+  
+  // Show launcher when middle button pressed
+  setWatch(Bangle.showLauncher, BTN2, {repeat:false,edge:"falling"});
+
+  // Switch between fix and max display on short press or reset max values on long press
+  setWatch(maxPressed, BTN1,{repeat:true,edge:"rising"});
+  setWatch(maxReleased, BTN1,{repeat:true,edge:"falling"});
+
+  // Touch screen to toggle display
+  setWatch(toggleDisplay, BTN4, {repeat:true,edge:"falling"});
+  setWatch(toggleDisplay, BTN5, {repeat:true,edge:"falling"});
+  
+  
+}
+
+function maxPressed() {
+  maxPress = getTime();
+}
+
+function maxReleased() {
+  var dur = getTime()-maxPress;
+  
+  if ( dur < 2 ) toggleMax();   // Short press toggle fix/max display
+  else {
+    max.spd = 0;  // Long press resets max values.
+    max.alt = 0;
+    onGPS(lastFix);  // redraw display
+  }
+}
+
+function updateClock() {
+  if ( dbg ) print('Updating clock');
+  if (!canDraw) return;
+
+  drawTime(); 
+  g.reset();
+  g.drawImage(img,0,40);
+//  g.flip();
+  
+  // Something different to display in the emulator
+  if ( emulator ) {
+    max.spd++;
+    max.alt++;
+  }
+  
+}
+
+function startDraw(){
+  canDraw=true;
+  g.clear();
+  Bangle.drawWidgets();
+  onGPS(lastFix);  // draw app screen
+}
+
+function stopDraw() {
+  canDraw=false;
+}
+
+// ===== Main Prog =====
+
+// Read settings. 
+let settings = require('Storage').readJSON('speedalt.json',1)||{};
+
+settings.spd = settings.spd||0;  // Multiplier for speed unit conversions. 0 = use the locale values for speed
+settings.spd_unit = settings.spd_unit||'';  // Displayed speed unit
+settings.alt = settings.alt||0.3048;// Multiplier for altitude unit conversions.
+settings.alt_unit = settings.alt_unit||'feet';  // Displayed altitude units
+settings.colour = settings.colour||0;          // Colour scheme. 
+settings.buzz = settings.buzz||0;          // Buzz when fix lost or gained. 
+
+/*
+Colour Pallet Idx
+0 : Background (black)
+1 : Speed/Alt
+2 : Units
+3 : Sats
+*/
+var img = {
+  width:buf.getWidth(),
+  height:buf.getHeight(),
+  bpp:2,
+  buffer:buf.buffer,
+  palette:new Uint16Array([0,0x4FE0,0xEFE0,0x07DB])
+};
+
+if ( settings.colour == 1 ) img.palette = new Uint16Array([0,0xFFFF,0xFFFF,0xFFFF]);
+if ( settings.colour == 2 ) img.palette = new Uint16Array([0,0xFF800,0xF800,0xF800]);
+
+
+// Find speed unit if using locale speed
+if ( settings.spd == 0 ) {
+  var strSpeed = require("locale").speed(1);
+  m = strSpeed.match(/([0-9,\.]+)(.*)/); // regex splits numbers from units
+  settings.spd_unit = m[2];
+}
+
+var SCREENACCESS = {
+      withApp:true,
+      request:function(){
+        this.withApp=false;
+        stopDraw();
+        clearWatch();
+      },
+      release:function(){
+        this.withApp=true;
+        startDraw(); 
+        setButtons();
+      }
+}; 
+
+Bangle.on('lcdPower',function(on) {
+  if (!SCREENACCESS.withApp) return;
+  if (on) {
+    startDraw();
+  } else {
+    stopDraw();
+  }
+});
+
+// All set up. Lets go.
+g.clear();
+Bangle.setLCDBrightness(1);
+Bangle.loadWidgets();
+Bangle.drawWidgets();
+Bangle.setGPSPower(1);
+
+onGPS(lastFix);
+Bangle.on('GPS', onGPS);
+
+setButtons();
+setInterval(updateClock, 30000);
+
diff --git a/apps/speedalt/app.png b/apps/speedalt/app.png
new file mode 100644
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diff --git a/apps/speedalt/screen1.png b/apps/speedalt/screen1.png
new file mode 100644
index 000000000..eac5e7e7a
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diff --git a/apps/speedalt/screen2.png b/apps/speedalt/screen2.png
new file mode 100644
index 000000000..37d7bb7cf
Binary files /dev/null and b/apps/speedalt/screen2.png differ
diff --git a/apps/speedalt/screen3.png b/apps/speedalt/screen3.png
new file mode 100644
index 000000000..9e061958e
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diff --git a/apps/speedalt/screen4.png b/apps/speedalt/screen4.png
new file mode 100644
index 000000000..1082d59b4
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diff --git a/apps/speedalt/settings.js b/apps/speedalt/settings.js
new file mode 100644
index 000000000..21171edee
--- /dev/null
+++ b/apps/speedalt/settings.js
@@ -0,0 +1,61 @@
+(function(back) {
+
+  let settings = require('Storage').readJSON('speedalt.json',1)||{};
+  //settings.buzz = settings.buzz||1;
+  
+  function writeSettings() {
+    require('Storage').write('speedalt.json',settings);
+  }
+  
+   function setUnits(m,u) {
+    settings.spd = m;
+    settings.spd_unit = u;
+    writeSettings();
+  }
+
+  function setUnitsAlt(m,u) {
+    settings.alt = m;
+    settings.alt_unit = u;
+    writeSettings();
+  }
+
+  function setColour(c) {
+    settings.colour = c;
+    writeSettings();
+  }
+  
+  const appMenu = {
+    '': {'title': 'GPS Speed Alt'},
+    '< Back': back,
+    'Units' : function() { E.showMenu(unitsMenu); },
+    'Colours' : function() { E.showMenu(colMenu); },
+    'Vibrate' : {
+    value : settings.buzz,
+    format : v => v?"On":"Off",
+    onchange : () => { settings.buzz = !settings.buzz; writeSettings(); }
+    }};
+  
+  const unitsMenu = {
+    '': {'title': 'Units'},
+    '< Back': function() { E.showMenu(appMenu); },
+    'default (spd)' : function() { setUnits(0,''); },
+    'Kph (spd)' : function() { setUnits(1,'kph'); },
+    'Knots (spd)' : function() { setUnits(1.852,'knots'); },
+    'Mph (spd)' : function() { setUnits(1.60934,'mph'); },
+    'm/s (spd)' : function() { setUnits(3.6,'m/s'); },
+    'Meters (alt)' : function() { setUnitsAlt(1,'m'); },
+    'Feet (alt)' : function() { setUnitsAlt(0.3048,'feet'); }
+  };
+
+  const colMenu = {
+    '': {'title': 'Colours'},
+    '< Back': function() { E.showMenu(appMenu); },
+    'Default' : function() { setColour(0); },
+    'Hi Contrast' : function() { setColour(1); },
+    'Night' : function() { setColour(2); }
+  };
+  
+  
+  E.showMenu(appMenu);
+
+})