Originally Posted by
erik123
The maximum would normally be <24 hours but it isn't set in stone.
It is set in stone unless the fare allows stopovers.
This is not a negotiation. You feed in the segments you want and the computer prices it out. If there is more than 24 hours between your flights they will either add a stopover (if allowed) and charge you whatever the fare charges for a stopover, or it will break it into 2 fares.