My created_at timestamps are stored in UTC:
created_at
>> Annotation.last.created_at => Sat, 29 Aug 2009 23:30:09 UTC +00:00
How
If you add this to your /config/application.rb
/config/application.rb
config.time_zone = 'Eastern Time (US & Canada)'
Then you can cell
Annotation.last.created_at.in_time_zone
to get the time in the specified time zone.