50 - 60 years ago when there was a large aku boat fleet... they would point the boat toward Honolulu, turn on the auto-pilot... figure they were about 5 hours out and set the alarm clock for 4 ½ hours and everyone on board went to sleep.  All the small boat fishing fleet knew to steer clear of an aku boat because everyone on board was asleep.  Many an aku boat ended up on the reef because they figured their travel time wrong or the alarm clock failed to wake them up...  just saying.