weird datetime issues in rails

application.rb

    config.time_zone = "Pacific Time (US & Canada)"
    config.active_record.default_timezone = "Pacific Time (US & Canada)"

index.html.erb

<p id="notice"><%= notice %></p>

<h1>Listing System Logs</h1>

<table class="table table-striped">
  <thead>
    <tr>
      <th>Occurred</th>
      <th>Action</th>
      <th>Comment</th>
      <th>CreatedAt</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @system_logs.each do |system_log| %>
      <tr>
        <td><%= system_log.occurred %></td>
        <td><%= system_log.action %></td>
        <td><%= system_log.comment %></td>
        <td><%= system_log.created_at %></td>
        <td><%= link_to 'Show', system_log %></td>
        <td><%= link_to 'Edit', edit_system_log_path(system_log) %></td>
        <td><%= link_to 'Destroy', system_log, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      </tr>
    <% end %>
  </tbody>
</table>

<br>

<%= link_to 'New System log', new_system_log_path %>

rails_console_output

2.2.2 :002 > SystemLog.first
  SystemLog Load (0.6ms)  SELECT  "system_logs".* FROM "system_logs"  ORDER BY "system_logs"."id" ASC LIMIT 1
 => #<SystemLog id: 1, occurred: nil, action: "Loading all Initialized Data", comment: "", created_at: nil, updated_at: nil> 
2.2.2 :003 > 

system_log.rb

# == Schema Information
#
# Table name: system_logs
#
#  id         :integer          not null, primary key
#  occurred   :datetime
#  action     :string
#  comment    :text
#  created_at :datetime         not null
#  updated_at :datetime         not null
#

class SystemLog < ActiveRecord::Base

end

system_logs_controller.rb

class SystemLogsController < ApplicationController
  before_action :set_system_log, only: [:show, :edit, :update, :destroy]

  # GET /system_logs
  # GET /system_logs.json
  def index
    @system_logs = SystemLog.all.order(occurred: :desc)
  end

  # GET /system_logs/1
  # GET /system_logs/1.json
  def show
  end

  # GET /system_logs/new
  def new
    @system_log = SystemLog.new
  end

  # GET /system_logs/1/edit
  def edit
  end

  # POST /system_logs
  # POST /system_logs.json
  def create
    @system_log = SystemLog.new(system_log_params)

    respond_to do |format|
      if @system_log.save
        format.html { redirect_to @system_log, notice: 'System log was successfully created.' }
        format.json { render :show, status: :created, location: @system_log }
      else
        format.html { render :new }
        format.json { render json: @system_log.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /system_logs/1
  # PATCH/PUT /system_logs/1.json
  def update
    respond_to do |format|
      if @system_log.update(system_log_params)
        format.html { redirect_to @system_log, notice: 'System log was successfully updated.' }
        format.json { render :show, status: :ok, location: @system_log }
      else
        format.html { render :edit }
        format.json { render json: @system_log.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /system_logs/1
  # DELETE /system_logs/1.json
  def destroy
    @system_log.destroy
    respond_to do |format|
      format.html { redirect_to system_logs_url, notice: 'System log was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_system_log
      @system_log = SystemLog.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def system_log_params
      params.require(:system_log).permit(:occurred, :action, :comment)
    end
end