use_zone

Allows override of Time.zone locally inside supplied block; resets Time.zone to existing value when done.

class ApplicationController < ActionController::Base
  around_action :set_time_zone

  private
    def set_time_zone
      Time.use_zone(current_user.timezone) { yield }
    end
end

NOTE: This won’t affect any ActiveSupport::TimeWithZone objects that have already been created, e.g. any model timestamp attributes that have been read before the block will remain in the application’s default timezone.