User blog comment:B214/Question and Answers 6/@comment-26926813-20170717180605/@comment-29963364-20170717184158

Did it ever explain how it worked?

My own theory is that it's similar to Gasper's [Forbidden Balor View], in that it's range and effectiveness is dependant on the user's skill and power. And instead of just "stopping" time, it can also "fast-forward" and "rewind" time.