World Clock in gnome-shell
27697
Clocks for multiple timezones in GNOME Shell
51759
How to make Gnome's "Activities" bar always visible?
131174
Clock & Date won't show up on boot sometimes in Ubuntu 13.10
102037
Windows vs Linux Local Time?
85723
How can the last command's wall time be put in the Bash prompt?
6229
How do I reset GNOME to the defaults?
20734
Is there a way to adjust the formatting of the date/time in the GNOME 3 login screen and desktop?
5731
How to customize the ubuntu gnome 3 desktop?
19035
Will GNOME be updated to 3.30 in Ubuntu 18.04 by itself?
59093
How do I adjust the Clock Indicator format?
155416
How to automatically set time to day with command blocks
104276
How to sync gnome-calendar with an online calendar?
94155
How can I display the current time & date setting?
65220
Keeping the time stamp when syncing with Ubuntu One?
2012
Two different versions of GNOME runtime
35021
How to show seconds on the Windows 10 tray clock
100906
Is there a Time Zone setting?