Appears in the story:
A Simple Twist Of Fate
This article concerns A Simple Twist Of Fate version of the spell Tempus Fugit Arrestum; you may be looking for other canon and fanon versions
Tempus Fugit Arestum is a spell which stops time and, for Time Wizards and Witches, allows the caster to travel through time.
Origins[]
This particular version of Tempus - a non canon spell often used in Fanfiction but not canonical to the Harry Potter series - is altered to be Tempus Fugit Arestum and is based on the spell from The New Worst Witch in which it allows time to stop and be travelled through.