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Using indirect heat you should be safe up to 425 degrees if not more. Some pizza place have ovens over 800 degrees. My pizza oven at work is set at 550 degrees. If you are using direct heat the temp would be considerably less because it will burn your crust.
As for the time it takes, It depends on how big the pizza is, how thick the crust is, how many toppings etc... A pizza with lots of toppings is going to take longer than a plain cheese pizza.
You want to cook pizza pretty hot. At home I make pizza in a preheated cast iron pan at 550 for 10 minutes. In a commercial pizza oven you cook it at about 420 for ~7 minutes. Traditional wood fired pizza cooks at about 800.