The new WashingtonGlory.com website is slowly adding info, and the latest includes a link to a schedule. This schedule lists the start time as 7 PM for weeknight games, and 5 PM for Sat & Sun games. This is a change from last season, when all games started at 7 PM.
The site also confirms that the Glory will be back at George Mason University this season.
There is also mention of a "Fan Fest" during the first weekend in June, but no details are yet available.