The material below is Open Game Content from 3PP Source
Level: Sor/Wiz 7
Components: V, S, M
Casting Time: 1 standard action
Duration: 1d4+1 rounds relative to you (see text)
Saving Throw: None
Spell Resistance: No
This spell causes time around you to slow to one half its normal pace. To those observing, you seem to have sped up to double your normal speed.
In addition to the normal actions you take each round on your initiative, you can take an additional full round of actions (a full round action or a standard and a move action) later in the round at an initiative equal to your actual initiative minus ten. For all durations, this second round is a new round. This includes the durations of spell targeting you, as well as features that are limited to uses per round (such as attacks of opportunity, or swift actions).
For example, when combat begins you roll an initiative of 18 and your foes roll initiatives of 12 and 3. As your first action on initiative count 18, you cast time slow, then expeditious charge (a swift action) and move away from your foes. Your first foe then fires an arrow on initiative count 12. On initiative count 8 (18–10) you get to act again, but your expeditious charge effect expires, since it is effectively a new round for you. Finally on initiate count 3, your other opponent has a chance to act. On the next round you again act on initiative counts 18 and 8.
Spells that you cast on other targets, or spells that create effects (such as the summon monster spells), are not affected by this spell.
Material Components: A tiny hourglass.