Eylhaar's Feast, glythtide's Gift, Idon's Theft and Murrula's Flames also need duration information. Those are the blank lines in the previous post. Those hyperlinks didn't want to copy paste onto the forums. I blame Entropy's Glory.

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Vote:
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AE - Is a TM spell so I didn't try and tabulate the speed of bolt drops etc.
Auspice - 10 minutes | 30+ minutes (which should last for at least half an hour.)
Benediction - 10 minutes | 39 minutes
Bless - 10 minutes | 40 minutes (Self cast -- on weapons obviously this is converted into strikes)
Centering - 10 minutes | 40 minutes
Divine Radiance - 10 minutes | 40 minutes
Eylhaar's Feast - not a standard duration spell so I didn't time the length of addiction from single cast.
Glythtide's Gift - 10 minutes | 39 minutes
Halo - 1 minute | 10 minutes
Idon's Theft - 2 minutes or 2 usess | 10 minutes or 6 uses
Major Physical Protection - 10 minutes | 39 minutes
Minor Physical Protection - 10 minutes | 39 minutes
Murrula's Flames - a moderate amount of time. | an extremely long time
Osrel Meraud has an indefinite duration of existence until the orb is released.
Persistence of Mana - 30 minutes | 89 minutes
Protection from Evil - 10 minutes | 40 minutes
Rejuvenation has specific functions of which I don't feel like trying to time a duration of effect.
Sanctify Pattern - 10 minutes | 39 minutes
Sanyu Lyba - 2 minutes | 10 minutes
Shield of Light - 10 minutes | 39 minutes
Soul Bonding - Similar to Rejuvenation - Also has debilitating ability that I didn't time.
Soul Shield - very weak at 10 minutes | extremely powerful at 40 minutes
Soul Sickness - Debilitation spell, didn't test possible durations (also fairly certain duration of induced RT is dependent on the amount of stat contest win
Spite of Dergati - Debilitation, I don't have this spell nor did I find someone with it to time it's effect.
Uncurse - This spell has no perceivable duration to check.
Vigil - The binding essence feels weak | The binding essence feels extremely strong

>> Thanks Liurilias!

Nice!

I can add cross holy realm casting from a MM perspective if that interests you!