You are probably going to need to write a helper. Details on how to write a helper can be found here:
Your template for a Date string would look like this:
<p>Today: {@formatDate value="{today}"/}</p>
Your helper would be something like this:
dust.helpers.formatDate = function (chunk, context, bodies, params) {
var value = dust.helpers.tap(params.value, chunk, context),
timestamp,
month,
date,
year;
timestamp = new Date(value);
month = timestamp.getMonth() + 1;
date = timestamp.getDate();
year = timestamp.getFullYear();
return chunk.write(date + '.' + month + '.' + year);
};
You would want to add in the piece to get the leading zero in front of the month or date as well.