Geneva is 2 hours behind Nairobi
Best overlap: 10:00 AM to 6:00 PM in Nairobi is 8:00 AM to 4:00 PM in Geneva.
The sweet spot is 10:00 AM to 6:00 PM Nairobi time, matching 8:00 AM to 4:00 PM in Geneva. The 2-hour gap barely gets in the way — you've got 8 hours of overlap, so pick whatever time fits the agenda. Just remember Geneva changes its clocks for daylight saving and Nairobi doesn't, so confirm the overlap whenever the seasons turn.