Livestamp.js, a simple, unobtrusive jQuery plugin that provides auto-updating timeago text to your timestamped HTML elements using Moment.js, packaged for Meteor.
mrt add livestamp-hs
Just like the Livestamp docs tell you:
<span data-livestamp="2013-12-24T08:14:42.345Z"></span>
Or you can use the handlebars helper, where timestamp is a timestamp from your database or template helper:
{{livestamp timestamp}}
Use the .livestamp CSS selector to style your markup.