I installed an Ubuntu server 18.04. And then I discovered that the time displayed was not correct. Hey, I was pretty sure that during the gui installation process I had selected the time zone. Or had I not? Anyway, the time was one hour behind. This sort of a careless error can happen to anyone. So for those of you who might sometime be in the same boat as me: don't worry! Here's how to fix the issue and it's really easy!