E.C.
My children have the same witching hour. I found that it helps to have distraction. I have special evening toys that only come out during this time and I give them a small snack (grapes or peice of cheese or something like that). Seems to have worked for me. I think they were hungry and not wanting to wait for dinner and upset they did not have my attention anymore. They like the toys that are pulled out during this time, they are put away until this time so they want to play with them before they are put away. I also try and get them involved with making dinner - setting the table, mixing stuff, getting stuff from the fridge and that kind of thing. Good luck!