The first rule of publishing ETAs for updates is to triple the estimate. Be the hero that finishes before the published time vs finishing after! The second rule of ETAs is don't specifiy a time.

I'm still amazed at the number of cults that place a specific date on the return of the savior, and even more by the people that go along with the rescheduling. The fact that I'm still waiting in Dallas for JFK's return is irritating. /s