Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/glib-2.0/schemas/org.gnome.gedit.plugins.time.gschema.xml

 <schemalist>
  <schema gettext-domain="gedit" id="org.gnome.gedit.plugins.time" path="/org/gnome/gedit/plugins/time/">
    <key name="prompt-type" enum="org.gnome.gedit.plugins.time.GeditTimePluginPromptType">
      <default>'prompt-selected-format'</default>
      <summary>Prompt Type</summary>
      <description>If the user should be prompted for a format or if the selected or custom format should be used.</description>
    </key>
    <key name="selected-format" type="s">
      <default>'%c'</default>
      <summary>Selected Format</summary>
      <description>The selected format used when inserting the date/time.</description>
    </key>
    <key name="custom-format" type="s">
      <default>'%d/%m/%Y %H:%M:%S'</default>
      <summary>Custom Format</summary>
      <description>The custom format used when inserting the date/time.</description>
    </key>
  </schema>
</schemalist>