I could be blind but I don't see it answered anywhere, how am I to know when I'm eligible to get my next crystal shard? The event has a 30 min cooldown, but I don't see a timer anywhere showing me when I'm eligible to get another shard. Does such a thing exist? Is it a 20 hour cooldown, or is it once per calendar day? If someone can please point me to where that information exists I'd appreciate it. If it doesn't exist, can a dev please clarify (if one is on)?