SOAP getAppointments and sort by appt-start?

[phpdiddy]

Hey everyone. I'm working on some integration of Zimbra using PHP and SOAP and have had a lot of luck with getting email, but I've run into a snag with sorting on appointments. It seems that the 'sortBy: dateAsc' attribute of the SOAP request sorts by the date the appointment was entered, not the date/time of the actual appointment. This just doesn't seem right, as I don't know why you would want the default sort to be on nothing that has to do with the appointment.

Anyone know how to sort on the appointment date and time, not the entry date and time?