I wrote a bot to snatch an Amazon Fresh delivery slot for my groceries. (One bot publicly available just notifies you when a slot is available, but mine goes th

I wrote a bot to snatch an Amazon Fresh delivery slot for my groceries. (One bot publicly available just notifies you when a slot is available, but mine goes the whole way including placing the order and paying for it.) What I've noticed is that delivery slots—at least for the San Diego area—are released once a day around 10pm-midnight, and sell out in about 10-20 minutes. So if you are obsessively checking manually every 10min around this time of the day, you are still relatively likely to find one.