Gitlab CE time_zone does not always apply

I've recently installed Gitlab CE 7.9.0 on Ubuntu 14.04

Here's what I have in config:

vpssh@redmine1404:/opt/gitlab/embedded/service/gitlab-ci$ sudo cat /etc/gitlab/gitlab.rb | grep zone
gitlab_rails['time_zone'] = 'Hawai'

But in activity label is in UTC:

Screenshot_from_2015-03-26_17_28_21

Inside commit its in server's timezone (Europe/Moscow)

Screenshot_from_2015-03-26_17_16_02

And messages show UTC aswell

Screenshot_from_2015-03-26_17_16_21

What am I doing wrong?