"No, we don't ever touch the old Seance. The wizards of old wrote it a long time ago and the last time we changed a word it stopped summoning demons in jars and started summoning them in rectal cavities. Just leave it alone."
Oh no. Do you mean Midnight for each monestary locally, or do you mean when it's midnight at our prime monestary that it is cast? Three are in the time zone an hour ahead, and seven are an hour behind! They need to happen simultaneously for it to work!
Still better than the spell that needs to be cast at local noon. They synchronized those by having each monastery create and then destroy an invisible copy of the sun whenever they cast it. You don't want to know how expensive to maintain that is.
I'm really liking the idea of the day-to-da experience for a working mage in the magical standards agency responsible for keeping all these things in order. An even more arcane IEEE, if that's possible.
Spells extracting energy from another magical system MUST send a request for draw before beginning extraction.
High-capacitance spells SHOULD respond to all requests with positive authorization if sufficient capacity exists, but MUST reply in some way.
We're a little worried about what happens when the astral calender hits the new millenium but no ones figured out how to insert another date rune without causing the whole magic circle to start smoking alarmingly.