Temporal Magic

At it's heart, Temporal Magic (TM) is the name for any magic that manipulates the flow of time in some way. Some say that Divination Magic is in some way a form of TM and there is some validity to that argument. However, Divination merely views different times and places. To be classed as true Temporal Magic, it needs to manipulate time.
Some examples include:

• Grabbing an object in the past and bringing it forward
• Traveling physically into the past
• Stopping time (from your POV) so you can do something to your enmies

Some of the effects of TM can be shared with other schools of magic, and many an innocent spell caster has been caught out by the sneaky and insidious nature of TM.
Ultimately, there is some intereptatio from offocials as to what may be classed as TM, but some spells and effects cannot be denied to belonging to this banned school.