If you want to format a time field from you database, say for e.g.: createdAt, the following helper can be used.

UI.registerHelper('formatTime', function(context, options) {
  if(context)
    return moment(context).format('MM/DD/YYYY');
});

An alternate way would be to write a helper for one particular view, but creating a global helper would help us to re-use the helper elsewhere too and keep the code DRY.