If I use this, the time left is always zero. The development Tools output also shows:
PLAYER Buff/Debuff:
Retribution Aura: ID=7294, Stack=1, TimeLeft=0 ms, Owner=0
Blessing of Might: ID=19834, Stack=1, TimeLeft=0 ms, Owner=0
Seal of the Crusader: ID=20162, Stack=1, TimeLeft=0 ms, Owner=0