I found that I couldn't get into Balmung by waiting, though I hear the prime time to try to create a character in Balmung is between 4-8am PST. Never played during these times to confirm though, so take it with a grain of salt. I ended up just doing a world transfer into Balmung from Adamantoise myself, and while it cost $18, it took a couple of seconds at 5 in the afternoon.
