« first day (3094 days earlier)      last day (26 days later) » 

1:36 PM
@Edmund That can be answered by looking at Area 51. (Pro-tip: mouse over the "8 years ago" text to get exact time and date.)
@andre314 That was because we asked that some questions previously asked on SO be migrated here, which admittedly caused a small bit of consternation with SO mods (and led to imposing the rule of not allowing migrations for sufficiently old questions). It was admittedly a little annoying...
 

« first day (3094 days earlier)      last day (26 days later) »