Started out with that frustrating issue that bites many a Rails developer (judging from just a tad over 24hrs googling and reading blogs etc) - time_zone!
I'm on
ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.4.2] - Rails 3.2.8
config.time_zone = 'Copenhagen'
and initially, I wanted to bark up this three, 'with the pack'
[31] pry(main)> ent.enter_at=Time.now