TheTVDB and timezones

I am sure you are already aware of this, but there is no default timezone set for any of the dates available through the API. Dates can generally be assumed to be in the timezone of the TVSeries country of origin. So British shows are generally GMT, Danish shows in CET and so on.

Therefore is this assumption incorrect:
https://github.com/simonbs/CharlesTVDB/blob/master/CharlesTVDB/Models/CharlesTVSeries.m#L251

Any thoughts on how this issue can be addressed?