Invalid argument to TimeZone?

Question

I'm trying to make my users Time zone be the current Time zone of my application so everything they interact will be by it. I run into an ArgumentError for my method inside of my ApplicationController though.

application_controller.rb

before_filter :set_user_time_zone

private

def set_user_time_zone
  if signed_in?
   Time.zone = Time.now.in_time_zone(current_user.time_zone)
  end
end

Notes: current_user is a Devise Helper and my User model as a :time_zone column.

Than the error:

invalid argument to TimeZone[]: Mon, 20 Aug 2012 13:16:20 JST +09:00

I don't know where to go from here. Any ideas on how to correct this?

Thanks.

UPDATE

class Price
  attr_accessible :date
  def self.today
    where(:date => Date.today)
  end
end

If my method does:

def set_user_time_zone
  if signed_in?
    Time.zone = current_user.time_zone
  end
end

The problem I have my times are like this:

 Time.now = US EAST- 2012-08-22 21:17:03 -0400 
 Time.zone = TOKYO - (GMT+09:00) Tokyo 
 Time.zone.now 2012-08-23 10:17:03 +0900

Which means all of my Date methods go by

Time.now = US EAST- 2012-08-22 21:17:03 -0400

when it should be

Time.zone.now 2012-08-23 10:17:03 +0900

How can I get it to the latter?

Invalid argument to TimeZone?

2 Answers