magento-test/app/code/Magento/Customer/Test/Mftf/Data/DateData.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<entities xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="urn:magento:mftf:DataGenerator/etc/dataProfileSchema.xsd">
    <entity name="EN_US_DATE">
        <data key="short">9/21/93</data>
        <data key="short4DigitYear">9/21/1993</data>
        <data key="medium">Sep 21, 1993</data>
        <data key="long">September 21, 1993</data>
        <data key="full">Tuesday, September 21, 1993</data>
    </entity>
    <entity name="FR_FR_DATE">
        <data key="short">21/09/1993</data>
        <data key="short4DigitYear">21/09/1993</data>
        <data key="medium">21 sept. 1993</data>
        <data key="long">21 septembre 1993</data>
        <data key="full">mardi 21 septembre 1993</data>
    </entity>
</entities>