Lock Screen date and time configuration
93280
How to display KDE lock screen time in 24-hour format
85615
Missing date & time from top panel of Unity Desktop - Ubuntu 14.04
132030
How to change the time for OS selection menu in GRUB?
149847
Transparent locked screen
46961
What's the source of those daily changing locked screen wallpapers on Windows 10?
57469
How to configure idle period for auto locking screen
138418
How to display date under time in GNOME
29382
Custom Lock Screen Implementation Techniques
153708
How to change real screen timeout settings for the Lock Screen?
96019
How can I know when my screen was locked last time?
14935
How to disable Windows 8 lock screen?
39581
How to Lock/Unlock screen programmatically?
94155
How can I display the current time & date setting?
100906
Is there a Time Zone setting?
20734
Is there a way to adjust the formatting of the date/time in the GNOME 3 login screen and desktop?
22265
What files get edited when the system time changes?
150794
How to set mobile system time and date in android?