This extension is mainly supported in an external venue: BlueSpice Community Forum. If you need help, you should post there, and not on the talk page.

MediaWiki extensions manual

DateTimeTools Release status: stableCategory:Stable extensions
Description	Provides date tools in VisualEditor.
Author(s)	Hallo Welt! GmbH
Maintainer(s)	Hallo Welt! GmbH
Latest version	4.5
Compatibility policy	For every MediaWiki release that is a Long Term Support release there is a corresponding branch in the extension.Category:Extensions with long-term support release branches compatibility policy
MediaWiki	1.39 (LTS)Category:Extensions with manual MediaWiki version
License	GNU General Public License 3.0 only
Download	Download extension Git [?]: Browse repository (GitHub) Gerrit code review Git commit log Download source tarball Category:Extensions in Wikimedia version control
Translate the DateTimeTools extension if it is available at translatewiki.net

Community Forum

DateTimeTools provides a mechanism to provide date tools in VisualEditor.

• 
  Droplet Date Inspector

Installation

• Download and move the extracted DateTimeTools folder to your extensions/ directory.
  Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/DateTimeTools
• Add the following code at the bottom of your LocalSettings.php file:

  wfLoadExtension( 'DateTimeTools' );
  

• Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

External links

• Extension reference: DateTimeTools
• Extension user help:

This extension is included in the following wiki farms/hosts and/or packages: BlueSpice Category:Extensions included in BlueSpice This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm.