Why is <gd:when> missing from this google calendar xml feed?

Why doesn't this XML representation of a public Google calendar contain any <gd:when> tag like I can see in this question?

The associated ical representation 开发者_如何学JAVAseems to contain start and end dates for the events.

Am I missing something?

The answer is: I need to end the url with 'full', not 'basic'.

Explained here: http://code.google.com/apis/calendar/data/2.0/reference.html

Because it doesn't have to? Because it doesn't? Because of some google bug? Because of some google feature?...

Am I missing something?

Why google something or other is the way it is, doesn't exactly seem like a question for stackoverflow :)