This is a Plasma 5 applet based on Plasma original analog clock but it supports Latte parabolic effect properly. This plasmoid is coming from Latte land but it can also support Plasma panels.
Analog Clock is using the exact size of Latte Items size
Analog Clock that has a thickness paddding applied
New Circular Calendar style
Settings
This is a QML applet and as such it can be easily installed from Plasma 5 Widgets Explorer or alternative you can execute plasmapkg2 -i . in the root directory of the applet.