diff --git a/apps/primetimelato/README.md b/apps/primetimelato/README.md
new file mode 100644
index 000000000..6760fe41a
--- /dev/null
+++ b/apps/primetimelato/README.md
@@ -0,0 +1,13 @@
+# Prime Time Lato (clock)
+
+A watchface that displays time and its prime factors in the Lato font.
+For example when the time is 21:05, the prime factors are 5,421.
+Displays 'Prime Time!' when the time is a prime number.
+
+![](screenshot.jpg)
+
+Written by: [Hugh Barney](https://github.com/hughbarney)
+
+Adapted from primetime by [Eve Bury](https://www.github.com/eveeeon)
+
+For support and discussion please post in the [Bangle JS Forum](http://forum.espruino.com/microcosms/1424/)
diff --git a/apps/primetimelato/app.js b/apps/primetimelato/app.js
new file mode 100644
index 000000000..2031fd53b
--- /dev/null
+++ b/apps/primetimelato/app.js
@@ -0,0 +1,106 @@
+const h = g.getHeight();
+const w = g.getWidth();
+
+Graphics.prototype.setFontLato = function(scale) {
+  // Actual height 41 (43 - 3)
+  this.setFontCustom(
+    E.toString(require('heatshrink').decompress(atob('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'))),
+    46,
+    atob("CxMeHh4eHh4eHh4eDQ=="),
+    52+(scale<<8)+(1<<16)
+  );
+  return this;
+};
+
+Graphics.prototype.setFontLatoSmall = function(scale) {
+  // Actual height 21 (20 - 0)
+  this.setFontCustom(
+    E.toString(require('heatshrink').decompress(atob('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'))),
+    32,
+    atob("BAcIDAwRDwUGBggMBAcECAwMDAwMDAwMDAwFBQwMDAgRDg4OEAwMDxAGCQ4LExARDREOCwwPDhUODQ0GCAYMCAYLDAoMCwcLDAUFCwURDAwMDAgJCAwLEAsLCgYGBgwA"),
+    21+(scale<<8)+(1<<16)
+  );
+  return this;
+};
+	
+// creates a list of prime factors of n and outputs them as a string, if n is prime outputs "Prime Time!"
+function primeFactors(n) {
+  const factors = [];
+  let divisor = 2;
+
+  while (n >= 2) {
+    if (n % divisor == 0) {
+      factors.push(divisor);
+      n = n / divisor;
+    } else {
+      divisor++;
+    }
+  }
+  if (factors.length === 1) {
+    return "Prime Time!";
+  }
+  else
+    return factors.toString();
+}
+
+
+// converts time HR:MIN to integer HRMIN e.g. 15:35 => 1535
+function timeToInt(t) {
+    var arr = t.split(':');
+    var intTime = parseInt(arr[0])*100+parseInt(arr[1]);
+
+    return intTime;
+}
+
+function draw() {
+  var date = new Date();
+  var timeStr = require("locale").time(date,1);
+  var primeStr = primeFactors(timeToInt(timeStr));
+
+  g.reset();
+  g.setColor(0,0,0);
+  g.fillRect(Bangle.appRect);
+
+  //g.setFont("6x8", w/30);
+  g.setFontLato();
+  g.setFontAlign(0, 0);
+  g.setColor(100,100,100);
+  g.drawString(timeStr, w/2, h/2);
+
+  //g.setFont("6x8", w/60);
+  g.setFontLatoSmall();
+  g.drawString(primeStr, w/2, 3*h/4);
+  queueDraw();
+}
+
+// timeout used to update every minute
+var drawTimeout;
+
+// schedule a draw for the next minute
+function queueDraw() {
+  if (drawTimeout) clearTimeout(drawTimeout);
+  drawTimeout = setTimeout(function() {
+    drawTimeout = undefined;
+    draw();
+  }, 60000 - (Date.now() % 60000));
+}
+
+// Stop updates when LCD is off, restart when on
+Bangle.on('lcdPower',on=>{
+  if (on) {
+    draw(); // draw immediately, queue redraw
+  } else { // stop draw timer
+    if (drawTimeout) clearTimeout(drawTimeout);
+    drawTimeout = undefined;
+  }
+});
+
+
+g.clear();
+// Show launcher when middle button pressed
+Bangle.setUI("clock");
+
+// Load widgets
+Bangle.loadWidgets();
+Bangle.drawWidgets();
+draw();
diff --git a/apps/primetimelato/app.png b/apps/primetimelato/app.png
new file mode 100644
index 000000000..2a84c62a0
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diff --git a/apps/primetimelato/icon.js b/apps/primetimelato/icon.js
new file mode 100644
index 000000000..06f93e2ef
--- /dev/null
+++ b/apps/primetimelato/icon.js
@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwwIdah/wAof//4ECgYFB4AFBg4FB8AFBj/wh/4AoM/wEB/gFBvwCEBAU/AQP4gfAj8AgPwAoMPwED8AFBg/AAYIBDA4ngg4TB4EBApkPKgJSBJQIFTMgIFCJIIFDKoIFEvgFBGoMAnw7DP4IFEh+BAoItBg+DNIQwBMIaeCKoKxCPoIzCEgKVHUIqtFXIrFFaIrdFdIwAV"))
diff --git a/apps/primetimelato/metadata.json b/apps/primetimelato/metadata.json
new file mode 100644
index 000000000..ab30724ba
--- /dev/null
+++ b/apps/primetimelato/metadata.json
@@ -0,0 +1,15 @@
+{ "id": "primetime",
+  "name": "Prime Time Lato Clock",
+  "version": "0.01",  
+  "type": "clock",
+  "description": "A clock that tells you the primes of the time in the Lato font",
+  "icon": "app.png",
+  "screenshots": [{"url":"screenshot.png"}],  
+  "tags": "clock",
+  "supports": ["BANGLEJS2"],  
+  "readme": "README.md",
+  "storage": [
+    {"name":"primetimelato.app.js","url":"app.js"},
+    {"name":"primetimelato.img","url":"icon.js","evaluate":true}
+  ]
+}
diff --git a/apps/primetimelato/screenshot.png b/apps/primetimelato/screenshot.png
new file mode 100644
index 000000000..7f6e7cc0d
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