Lastly, we should configure all our servers to use the UTC time zone. Using a single time zone prevents us from having to keep track of which server is on which time zone when accessing multiple servers at the same time:
hobnob@hobnob:$ sudo dpkg-reconfigure tzdata
After you have run the command, you'll be presented with the following screen. Use your up/down arrow keys to select None of the above. Then, use your left/right arrow keys to select OK and press Return:
On the next screen, select UTC, which stands for Universal Time Coordinated:
You should get a confirmation on your Terminal:
Current default time zone: ...
