Hi,
Sorry for the issues, but I can help solve this.
Thanks for providing the csv sheet I used it and was able to reproduce the error.
However, I think the issue is related to the the event times.
The event start and end time should be in separate fields, the importer does not support one field and if I import your csv file and do not import the times the dates come out correct.
So splitting the times into two fields solved the issue for me and should for you as well.
Also for your information the csv importer does not support recurring events.
Let me know if that fixes the issue for you.
Thanks