There may be other unforeseen breakage primarily in the handbook portion of the wiki.
The Table Of Contents section of each "PC-BSD® Users Handbook" page may be the best workaround.
Time Zone Selection Screen/10.1
The next configuration screen, shown in Figure 4.3a, allows you to select your timezone. Use the drop-down menu to select the city closest to your location.
To instead set the system clock to Universal Time, check the box “Set system clock to UTC time”.
A default system hostname will be created for you. If you wish to change the default, type in the desired hostname in the "System Hostname" field.
When finished, click "Next" to proceed to the next screen.