Sure.Depends on the size of the room, but the default is a 20 x 20 room takes 1 turn to search. A 10x10 room should take half that, etc. It has nothing to do with a "scene" and everything to do with a believable game world.
But you said:
I track it. Just look at their movement rates. Say they walk down a hundred foot corridor, explore a room and search a chest. In AD&D, that would be 10 minute for movement, assuming the party is mapping, 10 minutes for searching the room, and another two minutes to search the chest, assuming they check for traps. The spell has expired.
But obvioulsy it doesn't take the same time to search a cluttered 10x10 room as a bare one.
Nor to search a star-shaped room with funny corners, compared to a circular one.
At a certain point it's stipulation, not tracking. As [MENTION=27160]Balesir[/MENTION] and other said upthread.
Are you really saying that this is not a stipulation? That the time actually required to search a 25' square room won't vary depending on shape, furniture, clutter, lighting, etc?In 3e, it takes a standard action to search a 5' square (that's about 6 seconds). I can search 10 of those in a minute or I could take 20 and spend 2 minutes per square and search it to the absolute best of my ability.