My rules that triggers at sunset worked fine. My one rule that triggers at sunset -15 didn't run. I check the rule about 2 hours before sunset before I was expecting it to trigger and I didn't see a scheduled event. I checked 10 minutes after sunset and there is a scheduled job for tomorrow. I experience this every year and am going to rewrite my rule to trigger around 4:00 then Wait until sunset -15.
FWIW, I have some Rule Manager rules that fire at 6:05, 6:45, 7:30, 8:00. The 6:05 rule triggered at 5:05, and the 6:45 rule triggered at 5:45. I noticed in the "Scheduled Jobs" section of the rules (when you click the gear icon at the top of the edit page) they were scheduled to run an hour earlier than they should. I clicked "Update Rule" on the rule edit page without changing anything, then checked the "Scheduled Jobs" section again, and they updated to the correct time. And the 6:45 rule that I fixed just triggered a moment ago at 6:45.