Add 12 hour time option.

darksidelemm · darksidelemm · commit 561980ebbb37 · 2019-12-08T17:42:01.000+10:30
diff --git a/js/tracker.js b/js/tracker.js
@@ -44,6 +44,7 @@ var modeList = [
 //    "Position",
     "1 hour",
     "6 hours",
+    "12 hours",
     "1 day",
     "3 days",
     "All",
