It is the second case: You have installed Ubuntu before Windows or while installing Ubuntu the hard drive with the Windows partition is not plugged in.
Your suggestion to add an option to System -> Administration -> Time and Date sound good and would solve this problem too.
It is the second case: You have installed Ubuntu before Windows or while installing Ubuntu the hard drive with the Windows partition is not plugged in.
Your suggestion to add an option to System -> Administration -> Time and Date sound good and would solve this problem too.