Beware all N78 users, the device gives faulty clock information. Take a look at the pictures below to see what I mean (time between the pictures is no more than 5 seconds):
Notice the time? This is easy to reproduce, just open the menu screen (first image) and leave terminal like that. After some time check what time is it: look at the time, press menu button and check time again. That's it, at least in my device (software version 12.046).