why doesn't up to today work?
great question, I would report that
Up to you!
What about "from today"
"from today" would almost be the opposite of "until today", which is similar to "before today".
It would be nice to know in what context this sentence is used in real life, because it doesn't make a lot of sense to me...
I think "Until today" means something like "I can meet you today one more time".