19th October 2016, 1:45
Apparently this is an issue a lot of users have been having since the upgrade to plasma 5.8. However, I have found a solution which works for me. It requires modifying the digitalclcok.qml file. I have attached a link on how to fix it below.
https://bugsfiles.kde.org/attachment.cgi?id=101473
https://bugsfiles.kde.org/attachment.cgi?id=101473