What time do daily quests reset? Is it the same time per server (going by server time), per region, or is it a timer per person?
I am told: 7 AM EST (with weeklies resetting Tuesday).
Further more, it is my understanding this is universal (6 AM CST, 1 PM CET).
Tested today for you:
7AM server time on Space Slug.
US West Coast server.
Hope this helps.