Reducing Spell prep time

[Gunn]

I know there is either a feat or a trait that shortens the spell preparation time for wizards etc. from 1 hour to 15 min for all spells. Also shortens prep time for 1 spell from 15 min to 1 min. I can't remember what it is though, and I'm having trouble finding it. Does anyone know whether it's a feat or a trait and what it's name is?

[Petty Alchemy]

http://www.d20pfsrd.com/classes/core-classes/wizard/archetypes/paizo---wiza rd-archetypes/arcane-discoveries/fast-study

[ProfPotts]

Yes - Fast Study... but unfortunately it's not 'Wizards, etc' it's just 'Wizards'.

[Gunn]

thank you kindly good sir