I was looking at the theory crafting section and noticed that Holy Shock for holy paladins has a cooldown equation of:
7.5 / (1 + [TotalHaste]) if HasBuff([AvengingWrath]) and HasTalent(SanctifiedWrath) = CooldownSec * 0.5
SanctifiedWrath is a 40% reduction so instead of 0.5 it would be 0.6.