3693 is a 'peak hour' bus on weekdays. It doesnt operate from
morning till night. This bus usually starts at 0600, ends its
morning run @0900 before returning to bram. Just before noon, it'll
come out again for its afternoon and evening peak runs before
returning to the depot @1900+.
There is another 'peak hour' bus. This bus is SBS 3680 T for today
- 26th Jan. Similar to 3693, it operates at around the same time
with the exception that this bus goes back to bram @1130 and goes
back into service at 1520.
If u're free read its timesheet to find out more. 
As for other buses, i reckon there're buses of 28 143 145. 3693 had
to run w/o its desto because 238 serves one bus stop along braddell
rd, just after the bram exit. If the desto is put up, people would
mistaken that its in service when its not.
