---
title: "Constants"
description: "To create grouping expressions, you can use the following constants."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/constant.html"
breadcrumb: "User Guide > Appendices > Grouping Expressions Syntax > Constants"
dateModified: "2026-10-23"
---

# Constants

To create grouping expressions, you can use the following constants.

<table class="Blue_Table">
  <tr style="vertical-align:top">
    <th>
      <p>Constant</p>
    </th>
    <th>
      <p>Return Data Type</p>
    </th>
    <th>
      <p>Description</p>
    </th>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:middle;">
      <p><span style="font-weight:bold;">vCenter</span></p>
    </td>
    <td style="vertical-align:middle;">
      <p>Text (string)</p>
    </td>
    <td>
      <p>Returns the name of a virtualization server that manages a host, storage or VM.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:middle;">
      <p><span style="font-weight:bold;">Today</span></p>
    </td>
    <td style="vertical-align:middle;">
      <p>Date and time</p>
    </td>
    <td>
      <p>Returns the current date and time in the <span class="T_Filenames">YYYY-MM-DDThh:mm:ss</span> format.</p>
    </td>
  </tr>
</table>