I just tested this on Natty and the last update time doesn't change if the update is cancelled or fails (for example if the network connection is lost during update). I'm setting this bug to 'Invalid' since the root cause is unknown. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.
** Changed in: update-manager (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/307851 Title: Update manager shows invalid value in "last updated" field if failed to get package list -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs