Plebe Parents weekend will be August 6th through the 9th. I believe the first time the plebes will have liberty is on the 7th. The Plebe Parents Weekend Formal Parade is at 0830 on the 8th.
Also, the Sponsor-Plebe meet and greet will be on August 2nd at 1330. That will also be the day of the last phone call home before Parents Weekend.
If the trends from past years continue this will be the schedule for when the plebes are given liberty (allowed to leave the yard) during parents weekend.
August 7th: 1200-2359
August 8th: After the Formal Parade (1000ish)-2359
August 9th: 0800-1800.
I hope that helps with Parents Weekend Planning!