broulik added a comment.
If you do not have seconds enabled in digital clock, the data source is only updated once every minute. You might not see this if you try it right after startup but eventually the seconds will always be :00 making it pointless to copy seconds. Ideally, we find a way to update the data source in the instance the menu is opened but I didn't find one. REPOSITORY R120 Plasma Workspace REVISION DETAIL https://phabricator.kde.org/D6183 To: bschiffner, #plasma, broulik Cc: davidedmundson, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas