<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Guava:
This is called a 'layover' not stopover since it's less than 24 hours.</font>
I believe the correct term is "forced overnight." It essentially counts as a connection or layover.
I just did a "forced overnight" of 23 hours, 55 minutes in HNL on UA miles.