I had some 1215 calls on ES. We closed at 1213.5 so they were OOM. I think the deadline for exercising is 5:30PM EST but I'm not sure. I was half watching SPY until then. At the 4:15 close for ES it was at 121.90 and now it's at 122.11.
I don't know the exact conversion because of the dividend, but a 21 cent gain should be a more than 2 point change in ES. That would make it worth exercising, but just barely. Is it even possible to exercise at this point? If so I will check back in at 8pm when SPY stops trading.