I don't know absolutely for sure, but I would think probably not. My mother ordered from them once right around three and missed the deadline. That was a few months ago, and I'm sure not every situation is the same. If it was me, I would hope for the best, but expect the worst. Also, you won't know untill late in the evening. When they give out a tracking number, it's not untill anywhere between 5 & 10:00 PM. Good luck.