This could be a great idea, be able to time the Maps or the Dmaps, and after the time is finished, you will warp to the side warp, just like the timed warps in 1 screen in the screen flags menu.
Imagine all the things you could be able to do:
Time, like Majora's Mask.
Timed places, like Ganon's tower collapsing in Ocarina of Time.
Timed races and levels.
Timed games with multiple screens.
Day and Night, this could be great for temples that only open at night, or caves that only open when there's sunlight!!!.
and a lot more!!!.
EDIT: There should be a different way of warping with timed warps, rather than using side warps, this could make 3 warp types: Tile warp, Side warp and Time warp.