Question about Army AIT?

My husband is in BCT at FT Sill, OK and graduates Feb 24, 2011. He is then going to FT Meade, MD for his AIT. How long after BCT do they typically send the soldiers to AIT? Trying to figure out if we will be able to spend the weekend with him, as his graduation is on a Thursday and we are driving all the way from KY. Thanks!