VirtualTimeZoneRails

Updates the original behaviour of ActiveSupport::TimeZone to ignore daylight savings and keep consistent offset when initialized with Numeric or ActiveSupport::Duration.

(Similar behaviour to the Swift3 TimeZone)

zone = ActiveSupport::TimeZone.new(-28800)
time = zone.parse('2017-08-01') # => Tue, 01 Aug 2017 00:00:00 VirtualTimeZone -08:00
time.utc_offset # => -28800

The original behaviour was like this.

zone = ActiveSupport::TimeZone.new(-28800)
time = zone.parse('2017-08-01') # => Tue, 01 Aug 2017 00:00:00 PDT -07:00
time.utc_offset # => -25200, not -28800

This gem does not change the behaviour if the real time zone is given.

zone = ActiveSupport::TimeZone.new("America/New_York")
zone.parse('2017-08-01') # => Tue, 01 Aug 2017 00:00:00 EDT -04:00
time.utc_offset # => -14400

Add this line to your application's Gemfile:

gem 'virtual_time_zone_rails'

And then execute:

$ bundle

Or install it yourself as:

$ gem install virtual_time_zone_rails

Just include to the Gemfile of your rails project.

This gem does not implicitly convert numeric hours to seconds like original ActiveSupport::TimeZone does. (ActiveRecord::TimeZone implicitly convert numeric from -13 to 13 to milliseconds by multiplying with 3600)

If your code relies on this feature, please update by one of the following ways.

Original code:

ActiveSupport::TimeZone.new(9)

Updated code:

ActiveSupport::TimeZone.new(9.hours)

or

ActiveSupport::TimeZone.new(9 * 3600)

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/nobuhikosawai/virtual_time_zone_rails.

The gem is available as open source under the terms of the MIT License.