setting time zone

add_default_time_zone_to_users.rb

class AddDefaultTimeZoneToUsers < ActiveRecord::Migration
  def self.up
    change_column_default :account_settings, :time_zone, 'EST'
  end

  def self.down
    change_column :account_settings, :time_zone, :string, nil
  end
end

users_controller.rb

 # POST /users
  # POST /users.xml
  def create
    @user = User.new(params[:user])
    # @account_setting = AccountSetting.new(params[:account_setting])
    # @account_setting.time_zone = 'EST'

    if @user.save
      # @account_setting.user = @user
      # @account_setting.save
      redirect_to(@user, :notice => 'User was successfully created.')
    else
      render :action => "new" 
    end
  end