You know, this is exactly the sort of thing I've been stuck with in regards to the Greenmist quest line. I knocked out all but two of the quests, and was trying to figure out a good way to work Tracker Azeal for the fifth quest. He goes patrolling (depops, a new version pops instantly, and starts pathing) at 9 PM game time, but I couldn't find a way to tie Angelox's time code in to him.
This would be incredibly helpful stuff, because I've been hesitant to implement a work-around of any kind, and then have it become completely obsolete once someone figured out how to get time and quests working together... And it seems you have!
You and Angelox have really put together some great work on time recently, and I hope this all gets implemented soon. Keep it up!