ETA ... I had to change the spelling of clocks as I forgot the L
They're 5 hours behind (HC time is EST). I think all Goodmama's FFS stuff is lotteries, so you can enter all of them and winners will be drawn at random - you just have to set up a HC account and click the "enter" button on the item page, and if you happen to win you'll get an email telling you.
As for stalking, I gather some stuff will pop up randomly during the day (depends on the shop) but other stuff already has a "preview" up with the time when it'll be available. So, at 9am or whenever on the dot you might have 20 people all click "buy", and whoever gets there a millisecond earlier than everybody else gets it
. That said, some shops (like Goodmama
) seem to let a bunch of people put the same item in their cart, and whoever checks out first gets it, so you may think you've secured something only to find it's no longer available when you go to check out.