<span am-time-ago="publishedAt"></span>

moment.lang('en', {
    relativeTime : {
        future: "in %s",
        past:   "%s ago",
        s:  "seconds",
        m:  "1m",
        mm: "%m",
        h:  "1h",
        hh: "%h",
        d:  "1d",
        dd: "%dd",
        M:  "1m",
        MM: "%dm",
        y:  "1y",
        yy: "%dy"
    }
});

x = new moment();
z = x.clone().add('hours',1);
x.from(z, false);
>> 1h ago
x.from(z, true) //no ago
>> 1h