I can't find a way to return the ~time~ from a remote computer using Winsock (or anything else I've tryed)

Are you trying to return it from a computer that isn't set up to send a time?

TCP is nowhere near as high level as it would have to be to have support for sending times built in. You need to handle the whole process yourself, complete with converting whatever data you want to transfer to and from a list of bytes.