showing ics file in a way that adapts to users local time zone

We are planning a conference and have an .ics file with the scheduled talks. We are looking for a way to display the time of the talk in a way that they adapt to the local time zone. For example, the first talk of the conference starts at 14:00 Paris time. A user living in London should see it as starting at 13:00. Is this possible? We would be happy to learn about some web-based solution like this:

https://kal.hu-berlin.de/res/show/?cal=https://kal.hu-berlin.de/SOGo/dav/public/idslhpsg/Calendar/4BD3-5EF33A80-1F-75A4F680/&view=weeks

(The items start at August 17, 2020)

Or some wordpress plugin that can do this. This is the calendar:
https://kal.hu-berlin.de/SOGo/dav/public/idslhpsg/Calendar/4BD3-5EF33A80-1F-75A4F680.ics