Ideally, I like to move them after they've been confined by cold for 72 hours or more and move them on a moderately cold day. Like 30 or 40 F so they have a chance to climb back up if they fall off the cluster. But you can move them anytime. If it's flying temperatures at the time, I'd leave one hive for last or move them after dark. Since I often have to do this by myself, I like to load the hives on my trailer during the day when it's warm enough to fly, a box at a time and then wait until after dark for them all to be back inside and then close them up and move them. Then park the trailer there and wait until daylight and warm weather again and move them a box at a time to their final destination.