I'm not sure what you mean by times. So if I am off base here, please clarify.
For R-day, your candidate will have a time to report based on the last digit of his/her SSN, between 6:30 and 8:30 a.m. After your 90 second goodbye, family can spend the day touring West Point. Also, there will be informational booths set up for parents clubs, academy photo, etc. In the afternoon (not sure on exact time, I think it's 3 p.m.) there will be a parents briefing. Later, between 5 and 6 p.m. the new cadets will march to Trophy Point for the oath ceremony. During this time you might catch a glimpse of your new cadet.
For A-day the only official event is the acceptance parade at 10 a.m. on Sat., Aug 18th. After the parade the new plebes have duties to complete before they will be released to spend time with family. They will have to be back in the barracks at a set time in the evening. On Sunday, they will get most of the day to spend with family also, but may want to be back early to get started on their homework. Plebes usually only get walking priviliges for this weekend, which means they can't go far, basically Highland Falls area only. If you want the actual boundaries I can look them up for you.
One good source of information is prospective.net (after R-day you will be moved to plebe.net). You can find out how to register at this website:
http://www.west-point.org/parent/prospective-net/
Another good resource is your local West Point Parents Club. That is where I got much of my information.