After migrating from Joomla 2.5 to 3.6, I get the following error on the homepage:
DateTimeZone::__construct(): Unknown or bad timezone (0)
Does anyone know how I can overcome this?
Are you using jEvents or any other extension that works heavily with dates? If yes, then your solution could be by changing the timezone in the configuration of jEvents (or the other extension that you're using) to a "recognized" timezone. Try switching to a well know timezone first and see if that fixes the problem.