Stole this from Baseops.net
Here is the link, with some more info.
ANG Pay System Explained (AFTP, UTA, Title 10/32) - Baseops Forums
AFTP= Additional Flying Training Period. Each AFTP is a minimum of 4 hours, you can do a max of two in one calendar day. There are two types: ground AFTP, flying AFTP. Ground AFTP's are usually limited to a max of 12 per year, you can only do 4 grounds in a quarter. You can do a max of 16 AFTP's in a quarter, but are still limited to 48 per year. This is the norm for a ANG C-130 unit. There are other units and branches that get 72 AFTP's per year. You can do two flying AFTP's in a calendar day or a ground and a flying. You cannot do 2 ground AFTP's in one calendar day. AFTP's do not carry over the fiscal year, if you haven't used them, you lose them (yes there are exceptions). If you use all of them, (48) then you have to find another pay status to accomplish flying events, there is another category called a PT, but the commander doles those out and is not a preferred way to pay you.
UTA= Unit Training Assembly otherwise called drill, again, a minimum of a 4 hour block. If you get excused from drill you can make up the UTA, either before or after the normally scheduled drill period some call it a RUTA, "Rescheduled UTA". Again, they do not carry over the fiscal year, exceptions, of course, it's the friggin' guard, however not the norm since the money has to be accounted for during the fiscal year.
Title 32= active duty for training, usually the status you're in for :JA/AT's, taskings, annual training, some overseas deployments, some staff tours etc.
Title 10= active duty, usually for contingencies ie. OIF, OEF, and others, however you can also be on title 32.
OK, now, in one day you can do only one active duty day, or a combination of any of the following two: UTA, AFTP (ground or flying), technician's well another can of worms. You could do one AFTP or UTA in a day and do 2 sorties, I know one guy that did this because he wanted to get the max flying hours per year. However, I and others highly frown upon this, it sets a bad precedent, for many reasons (later discussion)
State Active Duty= highway robbery, stay away from it if possible. Usually only "base pay" for your rank, ie. no flight pay, Bah II, subsistence, and each state's per diem form is a nightmare and requires your grandparents signature, state attorney general etc.