Hello,
I personally think this would be a good move for you. I am in NA, so way off your time zone, but I am one of the odd ones out on this server. There are many Oceanic and SEA players, FCs, and Linkshells on Tonberry. The most active time on the server is around 4-12pm your time if I am doing my math correctly. The thing I love about Tonberry is that there is such a wide range of players that even in down times I am able to find skilled groups to enjoy content with. I hope this helps, and good luck!