Thank you @ruthies12! I have a feeling if we can get virtual line times like that for our trip we'll wind up spending an afternoon bouncing between VQ for Hagrid's and EP for Forbidden Journey. (I'm pretty sure my kids have a goal to see if they can get me to throw up...)
Heres the final screen shot for today, availability at quarter after 5. But the app says hagrids is delayed for weather so whether anyone will get to actually ride or not I don't know
If you're a few minutes early, they may wave you through the line. More than that and they'll probably tell you to wait or come back. A TM visually checks the time window on the VQ reservation from the app before sending you through to have it scanned. There are a lot of people moving through there - so I expect they don't want too many people showing up early and stacking the lines.
Being late is a different question - the app deletes the VQ reservation after the reservation time expires. I'm not sure exactly how long the VQ reservation stays in the app, but can say in some cases it's up to 30-45 minutes after the reservation window expires. Best advice is to take a picture of it just in case. If you don't have a VQ reservation to show the TM (either in the app or a picture), you'll have to explain what happened and it's at their discretion whether to let you through or not without a VQ reservation code. My sense is the TMs are somewhat flexible on late arrivals, but it'll depend on who you get.
For those who care- availability disappeared about 1030ish this morning, then more showed up around 11. As of noon there is no availability. I'm randomly checking throughout the day, I'll post when more show up.