I will be relocating my turtles to a friend's place 1 hr away for a few weeks. Bringing the whole set up with me. Outside winter temperature is unpredictable...was -20C 2 weeks ago. Then again, the turtles will be in the car.
So 1 hr to take down everything (including cleaning the tank), 1.5 hrs to load up the stuff in the car and drive to my friend's place, and probably 1 hr (at worst) to set it up. So let's say 3.5 hrs the turtles will be out of the water.
Turtle in a Tupperware container with no water? Handwarmer/heat pack needed in there?
Suggestions

