im just wondering what time the game will be on the eshop...because I live on the Pacific time zone, but would i be able to download the game a few hours earlier since different regions have different time zones?
Yes, they'll be able to handle it. I got FE:A fine and Animal Crossing had no issues.
Download Later just seems to work faster, at least for me. Probably because you go into sleep mode and thus the system is dedicated entirely to downloading, whereas "Download Now" is done while you are browsing.
Probably placebo, but I've just always found downloads go faster when you do Later.