I also lost my clock today on current 13.10 beta while purging evolution packages and configuration specific to evolution from various places (gconf,.local,.cache,.config) to resolve some broken email accounts which turned out just to be a hangover from gnome-online-accounts being replaced by ubuntu-online-accounts. After restoring the evolution packages and rebooting, my clock disappeared.
My clock was also resolved (appeared in panel, and Clock tab no longer greyed out) by reinstall of indicator-datetime followed by logout/login. ~$ sudo apt-get install indicator-datetime --reinstall -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-datetime in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1197647 Title: Date & Time applet in control center does not start Status in “indicator-datetime” package in Ubuntu: Fix Released Bug description: After upgrade to 13.10, going to control center and clicking on Date & Time causes the control center to relaunch in a loop and taking the focus each relaunch. Killing the control center stops the loop but there's no way for me to configure it, also, clock does not appear in the top right at the moment. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/1197647/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp

