I recently installed ubuntu 12.10 and it seems as though my clock is missing. I also don't see any options for date/time in the system settings panel.


Am I missing something? Again this is with Unity.
As per the comments above I've fixed this issue on my brand new 14.04 LTS installation by running.
$ pkill -f indicator-datetime-service
The clock came straight back.
This could be one of two things, either the clock isn't installed, or a setting has been flipped to turn it off.
First make sure the clock is installed by making sure indicator-datetime is installed:
Then log out and back in. If it's already installed and it's still not showing up, try the options here:
If that still doesn't work update your question with the results, thanks!
Worked for me:
sudo apt-get install indicator-datetime
sudo dpkg-reconfigure --frontend noninteractive tzdata
sudo killall unity-panel-service
Reference: https://askubuntu.com/a/357280/25184