I'm not sure if this'll help, but this small promotional picture has a time on it. I'm assuming it's 9 am, because 9 pm would have been written as 21:00. Also, safely assuming they're going off of Japan Standard Time (JST), we know it's 9 hours ahead of Coordinated Universal Time (UTC). So if it's 00:00 (midnight) UTC, then it's 09:00 JST. I'm not sure what time zone you're in, but I hope converting is a bit easier now. I don't read any Japanese and I'm just going off of prior knowledge, so please correct me if I'm wrong.