An alternative to table markup for event details, in feeds from the University Calendar:
<div class="event"> <p class="name"><strong>Event Name</strong></p> <p class="time"><em>Time</em>: [start time here]</p> <p class="venue"><em>Venue</em>: [venue here]</p> <p class="description"><em>Description</em>: Lorem ipsum dolor sit amet, consectetuer adipiscing elit. In ut pede et quam molestie ullamcorper. In hac habitasse platea dictumst. Donec lacus. Maecenas ullamcorper. Donec auctor odio. Mauris nec ligula. Nullam pede dolor, aliquet euismod, molestie ac, hendrerit eget, lorem.</p> </div> <!-- // .event -->
Event Name
Time: [start time here]
Venue: [venue here]
Description: Lorem ipsum dolor sit amet, consectetuer adipiscing elit. In ut pede et quam molestie ullamcorper. In hac habitasse platea dictumst. Donec lacus. Maecenas ullamcorper. Donec auctor odio. Mauris nec ligula. Nullam pede dolor, aliquet euismod, molestie ac, hendrerit eget, lorem.
Not a microformat, though that would be a great option also.