Bug? Calendar + UTC times

[atomatom]

=== 2011-04-18 14:32:18,848 [main] INFO ISCInit - Isomorphic SmartClient Framework (SC_SNAPSHOT-2011-04-11/EVAL Deployment 2011-04-11) - Initialization Complete

Using Ubuntu 10.04 and Firefox 3.6.

Calendar is inconsistent in how it respects the DateUtil definitions.

		DateUtil.setAdjustForDST(false);
		DateUtil.setDefaultDisplayTimezone("+0:00");

		Calendar calendar = new Calendar();
		Date now = new Date(System.currentTimeMillis());
		long hour = 1000L * 60L * 60L;
		Date oneHourLater = new Date(System.currentTimeMillis() + hour);
		calendar.addEvent(now, oneHourLater, "An event", "");

The following screen shot shows this code being run. The event correctly displays the UTC time but the calendar time (on the left) is in local time (PST).