I've finally been able to randomly reproduce this with some effort. Following is from upstart logs.
phablet@ubuntu-phablet:~$ cat ~/.cache/upstart/dbus.log | grep indicator Activating service name='com.canonical.indicator.bluetooth' Activating service name='com.canonical.indicator.datetime' Activating service name='com.canonical.indicator.location' Activating service name='com.canonical.indicator.messages' Activating service name='com.canonical.indicator.power' Activating service name='com.canonical.indicator.sound' Successfully activated service 'com.canonical.indicator.bluetooth' Successfully activated service 'com.canonical.indicator.messages' Successfully activated service 'com.canonical.indicator.power' Successfully activated service 'com.canonical.indicator.location' Successfully activated service 'com.canonical.indicator.sound' Failed to activate service 'com.canonical.indicator.datetime': timed out // This takes a while to appear. Added some debugging to unitymenumodel to log out dbus name watching: INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.network" INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.bluetooth" INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.messages" INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.power" INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.location" INDICATORS @ "15:55:36" : nameAppeared => "com.canonical.indicator.sound" INDICATORS @ "15:55:59" : nameVanished => "com.canonical.indicator.datetime" I've attached the dbus upstart log. ** Attachment added: "DBus upstart log" https://bugs.launchpad.net/indicator-datetime/+bug/1239708/+attachment/3880303/+files/dbus.log -- You received this bug notification because you are a member of Unity API bugs, which is subscribed to Indicator Date and Time. https://bugs.launchpad.net/bugs/1239708 Title: Welcome screen clock missing Status in The Date and Time Indicator: New Status in The Unity 8 shell: New Status in “unity8” package in Ubuntu: Confirmed Bug description: Today I have noticed the welcome screen clock missing. The only thing have done that is time related is changing the timezone to london on the system settings. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: unity8 7.82+13.10.20131011.2-0ubuntu1 Uname: Linux 3.4.0-3-mako armv7l ApportVersion: 2.12.5-0ubuntu2 Architecture: armhf Date: Mon Oct 14 14:50:07 2013 InstallationDate: Installed on 2013-10-14 (0 days ago) InstallationMedia: Ubuntu 13.10 - armhf (20131014) MarkForUpload: True ProcEnviron: TERM=linux PATH=(custom, no user) SourcePackage: unity8 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-datetime/+bug/1239708/+subscriptions -- Mailing list: https://launchpad.net/~unity-api-bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~unity-api-bugs More help : https://help.launchpad.net/ListHelp

