it seems my Teamspeak client can do a time travel and see the future.
That seems to appear only on one server but with different clients.
Here the Screenshots from different Client connections.
In the Logs (Server and Client) We can not see any information about it but if that would be neccessary, we could provide a logfile from the client and the server.
In TS3 the Connection Time is correct.
Best Regards, Daniel