Maw Hunt Rotations:
Tuesday at 7:00 AM Pacific Time
Friday at 7:00 PM Pacific Time
World Boss Rotations:
Weekly, Mortanis > Oranomonos the Everbranching > Nurgash Muckformed > Valinor, the Light of Eons

I'd much prefer if there was a way to determine this without calculating based on date, because that introduces the US/EU reset day differences (the above times are off for EU!) and potential changes in the future which would affect the schedule.

Not to mention the nightmare that is managing time and the idiocy (read: length) of what the data would look like for the schedule.