Originally Posted by
Howard Long
As far as I can tell, there is no physical limit imposed for staying airside as boarding cards aren’t checked at transit.
In pre-COVID times you would almost certainly get away with this - assuming your passport gives you visa free entry to Qatar. But if Qatar's borders are closed to your nationality or origin, long layovers and certainly those more than 24 hours are unlikely to fall within the technical definition of a transit, and you could be denied boarding as you are deemed to have a layover but are not admissable to Qatar for the layover.