For my Final Fantasy XI Timer for Palm http://doconnor.reamined.on.ca/ffxi/ I have figured out the schedule for the Carpenters' Landing barge. The barge runs on a 24 Vana'diel hour schedule and these times hours and minutes of the Vana'diel clock.
South Landing to North Landing:
5:40 boarding
6:30 departure
12:50 arrival
South Landing to Central Landing via Emfea:
13:40 boarding
14:20 departure
18:00 arrival
South Landing to Central Landing via Newtpool:
0:21 boarding
1:00 departure
4:50 arrival
North Landing to Central Landing:
19:00 boarding
19:40 departure
23:30 arrival
**** This information is out of date ****
Edited, Thu Feb 24 12:13:47 2005