I discovered the trigger for the misalignment, i.e. it occurs when `Tweaks-->Top Bar-->Seconds` is set to be `True`.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840265 Title: "Date" in Ubuntu 18.04 Lock Screen is not always center aligned when "Tweaks-->Top Bar-->Seconds" is set to be "True". To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1840265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs