Conrad changed the following in his language pack and that resolved the problem. If there is a more permanent fix that would be great.
In /langpacks/de.utf8/lang/de.utf8/langconfig.php
changed line $string['calendar_timeFormat'] = 'hh:mm';
to $string['calendar_timeFormat'] = 'HH:mm';
Now the time is shown in 24-hour format.
Conrad changed the following in his language pack and that resolved the problem. If there is a more permanent fix that would be great.
In de.utf8/ lang/de. utf8/langconfig .php
/langpacks/
changed line 'calendar_ timeFormat' ] = 'hh:mm';
$string[
to 'calendar_ timeFormat' ] = 'HH:mm';
$string[
Now the time is shown in 24-hour format.