Update locale with support for meridians

Author: atjn

libs/js/banglejs/locale.js

@@ -3,12 +3,17 @@ function round(n, dp) {
   var p = Math.min(dp,dp - Math.floor(Math.log(n)/Math.log(10)));
   return n.toFixed(p);
 }
+var _is12Hours;
+function is12Hours() {
+  if (_is12Hours === undefined) _is12Hours = (require('Storage').readJSON('setting.json',1)||{})["12hour"];
+  return _is12Hours;
+}
 exports = { name : "system", currencySym:"£",
   translate : str=>str, // as-is
   date : (d,short) => short?("0"+d.getDate()).substr(-2)+"/"+("0"+(d.getMonth()+1)).substr(-2)+"/"+d.getFullYear():d.toString().substr(4,11).trim(), // Date to "Feb 28 2020" or "28/02/2020"(short)
   time : (d,short) => { // Date to  "4:15.28 pm" or "15:42"(short)
 	  var h = d.getHours(), m = d.getMinutes()
-    if ((require('Storage').readJSON('setting.json',1)||{})["12hour"])
+    if (is12Hours())
       h = (h%12==0) ? 12 : h%12; // 12 hour
     if (short)
       return (" "+h).substr(-2)+":"+("0"+m).substr(-2);
@@ -42,5 +47,6 @@ exports = { name : "system", currencySym:"£",
   distance : (m,dp) => (m<1000)?round(m,dp)+"m":round(m/1000,dp)+"km", // meters to "123m" or "1.2km" depending on size
   speed : (s,dp) => round(s/1.60934,dp)+"mph",// kph to "123mph"
   temp : (t,dp) => round(t,dp)+"'C", // degrees C to degrees C
-  meridian: d => (d.getHours() <= 12) ? "am":"pm" // Date to am/pm
+  meridian: d => is12Hours() ? (d.getHours() <= 12) ? "am":"pm" : "", // Date to am/pm
+  is12Hours,
 };