kwin5-fx-beclock from home:kill_it:KDE project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:kill_it:KDE/openSUSE_Tumbleweed/home:kill_it:KDE.repo zypper refresh zypper install kwin5-fx-beclock