How to show seconds on SDDM and Lock Screen in KDE Plasma 6?

Desktop Environments Plasma
1

It worked in KDE Plasma 5 by editing the Clock.qml file in

/usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/Clock.qml
/usr/share/sddm/themes/breeze/components/Clock.qml

By adding

Qt.formatTime(timeSource.data["Local"]["DateTime"], "hh:mm:ss AP")

Now the Clock.qml file has moved to

/usr/lib/qt/qml/SddmComponents/Clock.qml
/usr/lib/qt6/qml/SddmComponents/Clock.qml
/usr/lib/qt6/qml/org/kde/breeze/components/Clock.qml

And the edit doesn’t work anymore.

2

I see that you’ve asked this exact question in the place it’s most likely to be answered.
The KDE forum: https://discuss.kde.org/t/how-to-show-seconds-on-sddm-and-lock-screen-in-kde-plasma-6/11778

Based on several forums, it seems the method you tried is the only publicly known method at the moment. This means your best chance of getting a solution is from someone who works with KDE more directly.

3

Hello, not sure why editing Clock.qml does not work any more, but you can easily use your own components with QML and override almost everything :smile:

The following works for me:

Disclaimer
I'm using Fedora Rawhide and KDE 6.1 beta, but it should work on EnOS too

Operating System: Fedora Linux 41
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.10.0-0.rc3.32.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 20 × 13th Gen Intel® Core™ i7-13700H
Memory: 15.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 4060 Laptop GPU/PCIe/SSE2
Manufacturer: LENOVO
Product Name: 82YA
System Version: Legion Slim 5 16IRH8

For lock screen:

  • copy Clock.qml breeze component to lockscreen package as MyClock.qml
 sudo cp /usr/lib/qt6/qml/org/kde/breeze/components/Clock.qml /usr/share/plasma/shells/org.kde.plasma.desktop/contents/lockscreen/MyClock.qml
  • adjust your formats in MyClock.qml
  • edit LockScreenUi.qml and replace the component Clock with MyClock; it’s on line 219 on my system

It’s similar for SDDM (I’m using SDDM theme 01-breze-fedora):

  • copy Clock.qml component to SDDM theme as MyClock.qml
sudo cp /usr/lib/qt6/qml/org/kde/breeze/components/Clock.qml /usr/share/sddm/themes/01-breeze-fedora/MyClock.qml
  • adjust your formats in MyClock.qml
  • edit Main.qml in themes folder, and like before, replace Clock with MyClock component.
Custom lockscreen clock

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