15 magical minutes.
Once upon a time in August 2023, my kids and I ran into an unexpected delay in the GoTG queue while also awaiting a Space 220 reservation, nervously texting my husband the whole time, as he stood next to the Space 220 check-in desk and confirmed the 15-minute grade period with the attendant. The kids and I finally boarded the 3-minute ride at 10 minutes past our reservation time, and after disembarking, scrambled down the stairs and sprinted along the path to Space 220 at a dead run, in the middle of the afternoon, in the blazing sun of a 97-degree day in mid August. We pulled up to the desk exactly 15 minutes past our reservation time, somehow red-faced and soaked with sweat even though we'd only been running outside for 90 seconds, and found the attendant giggling softly, saying, "You guys didn't have to kill yourselves. I'd still have let you in a couple of minutes from now..."
Walking into an air-conditioned building never felt so good!