Time-Turner | Wizarding World https://www.wizardingworld.com/writing-by-jk-rowling/time-turner
In spite of the many Muggle fantasies around the subject, time travel is possible in only a limited sense even in the magical world. While the subject is shrouded in great secrecy – investigations are ongoing in the Department of Mysteries – it appears that magic can take you only so far.
According to Professor Saul Croaker, who has spent