Help | Installation and Errors on page

I’m having trouble with the following:

  1. There seems to be errors on the page saying

A PHP Error was encountered

Severity: Warning

Message: date(): It is not safe to rely on the system’s timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone ‘UTC’ for now, but please set date.timezone to select your timezone.

Filename: libraries/Log.php

Line Number: 86

I did not even get to see the installation as the error is all over the page.

Same problem like this thread, solution is linked: 500 Internal Server Error is show