Get rid of TZInfo::AmbiguousTime exception

hacks.rb

# config/initializers/hacks.rb

Dir[Rails.root.join("lib/hacks/**/*.rb")].each { |file| require file }

time_zone.rb

# lib/hacks/time_zone.rb

# HACK to not raise TZInfo::AmbiguousTime error (https://github.com/tzinfo/tzinfo/issues/32) on:
# Time.zone.parse('27.10.2014 1:30:00 MSK +03:00') - 1.day
#
# Please get rid of it when you bump rails version and PR below will be resolved:
# https://github.com/rails/rails/pull/17409

module ActiveSupport
  class TimeZone
    def period_for_local(time, dst = true)
      tzinfo.period_for_local(time, dst) { |results| results.first }
    end
  end
end