Hamburg 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 Hamburg.
The overlap falls at 10:00 AM to 6:00 PM in Nairobi, or 8:00 AM to 4:00 PM if you're in Hamburg. With 8 hours in common, treat scheduling almost as if the two cities were in the same region. The window above shifts seasonally: Hamburg keeps daylight saving while Nairobi ignores it.