The presentation will start at 8:15pm London time (New York EST 3:15pm, Los Angeles 12:15pm, Rome - Italy 9:15pm, Melbourne - Australia 5:15am, Tokyo - Japan 4:15am).
As a refresher, the new XJ will be Jaguar's first car to feature the next-generation of its aerospace-inspired aluminium body architecture with powertrain options including the firm's latest V6 diesel and V8 gasoline engines.
Jag's BMW 7-Series fighting model, which is expected to feature a modern design partially inspired from the smaller XF, will be in dealerships from the end of this year.