add/drop deadline

[yayfulness]

Is the add/drop deadline at the beginning of Monday or the end of Monday? It sounds like it should be the end, but I'm not sure if I understand correctly. And I will be in significant trouble if I don't.

[Unit of Energy]

I'm pretty sure it's the end, since when they had add/drop cards it was the end of business Monday. Fun fact: I once added a class in the last month of school because the professor found out I hadn't enrolled in the right section. So there are people you can talk to if you need to switch things around, but it is way more effort if you don't do it right and on time to begin with.

[Watts]

At the end of the day (midnight).