I am trying the Judy Bird with 21.8 lb turkey. I salted late on Monday. How long do you think it will cook?

I think you should allow at least 4 hours in the oven (it might take less time to reach the 165° F mark, but give yourself some wiggle room), though you have to account for resting and carving time, too! I'd get it in at 12 PM if you're eating at 5. And find more info here! https://food52.com/blog/11646-the-essential-numbers-a-guide-to-times-and-temps-for-cooking-your-bird