With commit dc6a60dde, the calendar displays the ending day and time of
a continuing multi-day event on its ending day. This results in the list
not appearing to be sorted. This patch sorts the list according to the
displayed day/time.
With the two appointments
Thursday 0800-1000 Foo, and Wednesday 0900-Friday 1200 Bar and today
being Monday, the rest of the week list currently displays:
F ...1200 Bar
T 0800 Foo
With this patch, the displaying order is switched because Friday comes
after Thursday.
https://bugzilla.gnome.org/show_bug.cgi?id=727302