I downloaded version 0.3.12 of TZInfo from [1], and observed that it
has a very robust set of timezones including, for example, ‘America/
Anchorage’:
irb(main):001:0> require ‘rubygems’
=> false
irb(main):002:0> require ‘tzinfo’
=> true
irb(main):003:0> TZInfo::Timezone.get(‘America/Anchorage’)
=> #<TZInfo::DataTimezone: America/Anchorage>
Within Rails 2.2, however, which appears to have the same version of
the gem (see the error that follows), the set of timezones is far more
limited.
irb(main):001:0> require ‘rubygems’
=> true
irb(main):002:0> require ‘active_support’
=> true
irb(main):003:0> TZInfo::Timezone.get(‘America/Anchorage’)
TZInfo::InvalidTimezoneIdentifier: no such file to load – tzinfo/
definitions/America/Anchorage
from /usr/local/lib/ruby/gems/gems/activesupport-2.2.2/lib/
active_support/vendor/tzinfo-0.3.12/tzinfo/timezone.rb:108:in `get’
from (irb):3
Perhaps the maintainers of TZInfo didn’t bump up the version number of
the gem after adding additional timezone data?
Matt