<table border="1">
  <tr>
    <td></td>
    <th>Wandejski</th>
    <th>Gregoriański</th>
    <td></td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/01</td>
    <td>12 grudnia</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>21/01</td>
    <td>1 stycznia</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/02</td>
    <td>11 stycznia</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>22/02</td>
    <td>1 lutego</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/03</td>
    <td>10 lutego</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>20/03</td>
    <td>1 marca</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/04</td>
    <td>13 marca</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>20/04</td>
    <td>1 kwietnia</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/05</td>
    <td>12 kwietnia</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>20/05</td>
    <td>1 maja</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/06</td>
    <td>12 maja</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>21/06</td>
    <td>1 czerwca</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/07</td>
    <td>12 czerwca</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>20/07</td>
    <td>1 lipca</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/08</td>
    <td>12 lipca</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>21/08</td>
    <td>1 sierpnia</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/09</td>
    <td>11 sierpnia</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>22/09</td>
    <td>1 września</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/10</td>
    <td>11 września</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>21/10</td>
    <td>1 października</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/11</td>
    <td>11 października</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>22/06</td>
    <td>1 listopada</td>
    <td>←</td>
  </tr>
  <tr class="cal_wand">
    <td>→</td>
    <td>1/12</td>
    <td>10 listopada</td>
    <td></td>
  </tr>
  <tr class="cal_gre">
    <td></td>
    <td>22/06</td>
    <td>1 grudnia</td>
    <td>←</td>
  </tr>
</table>