Devs are aware there's a discrepancy in server times, right? Something is either working on Daylight Savings time, or ignoring it.
Event achievements show up at 4PM PDT.... The rest of the app rolls over at 5PM PDT
For example as of 5 minutes ago I see all the evolutions achievements and can work towards them, but daily rewards, clan checkin, etc won't work for another 55 minutes.
Same thing happened yesterday.