What is the most accurate clock in world? An Amotic clock? No, one that has stopped running. It is corect twice each day. I am glad my K3 sounds good and has a clock accurate enough for every day use. Some times I think tinkering with the K3 has become a hobby of it's own. It is real fun just to watch you guys go at this stuff. 73 N6XVT Sent from my iPhone