Date().toDateString()

This looks really promising. Definitely something that could be pulled into Bangle.js.

I guess one question is we have similar issues with time (12/24 hr), distance, speed, and maybe even numbers (,/. for separators). Perhaps we should have a 'Locale' library that handles all of these in one go. It might make sense (at least initially) to have it as a JS module/app to allow quick iteration.

My suggestion would be:

• Add something like Bangle.getLocaleString(value, inputUnits) - eg Bangle.getLocaleString(new Date(),'time') which executed the JS in a file called locale if it existed, or just output a 'standard' format.
  
• Add a new 'Locale' app which had a settings app which contained all @MaBe's strings, as well as the magic locale JS file that did all the magic
  
  

A second option is to still have the app and locale file, but to do something like this for each app that uses it:

var locale = {}
try {locale = require("locale");} catch(e){}
if (!locale.getTime) locale.getTime = d=>d.toISOString().match(/T(.....)/)[1];
// ...
console.log(locale.getTime(new Date()));

That'd then be compatible with all devices including the emulator (which doesn't support apps yet)