That would be the one, yes. If you're curious about the specifics, you could always use this code to see what's available for the $visitor variable (or any really) in the template:
Code:
{xen:helper dump, $visitor}
The condition you want if you only want it for logged-in users would be similar to this one:
HTML:
<xen:if is="{$visitor.user_id} AND {$visitor.timezone} == 'America/New_York'">Your content/link here</xen:if>