Chronomancy
Chronomancy stems from the word chronos (meaning time), and it is generally a fictional and sensational school of magic. Although the school is based on quantum physics and certain scientific theories, there is no concrete evidence of the perfected use of time manipulation.
Saw this across my feeds. Spent too long searching Wikipedia for it until I decided to look at the history page for Chronomancy.
They’ve obviously never played Chrono Trigger.