is-h20-h24</code></td>
    </tr>
    <tr>
      <td>Weekday</td><td><code>vis-monday</code>, <code>vis-tuesday</code>, <code>vis-wednesday</code>, <code>vis-thursday</code>, <code>vis-friday</code>, <code>vis-saturday</code>, <code>vis-sunday</code></td>
    </tr>
    <tr>
      <td>Days</td><td><code>vis-day1</code>, <code>vis-day2</code>, ..., <code>vis-day31</code></td>
    </tr>
    <tr>
      <td>Week</td><td><code>vis-week1</code>, <code>vis-week2</code>, ..., <code>vis-week53</code></td>
    </tr>
  