iTime Rewind by Beau Cremer and The Blue Crown
Have you ever wanted to travel back in time Now you can! 

"Wait rewind that! I need you to show me that again!" 
- Tom Elderfield 

"Genius new method." 
- Patrick Kun 

"A pocket-sized DeLorean, this is dope." 
- Calen Morelli 

A spectator picks a date and time and commits it to memory. They then watch the locked screen of an iPhone closely. 

They begin to see the time on the locked screen tick back, slowly at first. It then starts to speed up, getting faster and faster. Days, months, hours, and minutes fly past in a blur -- then it begins to slow, finally stopping on their thought-of date and time. NO APPS used in this effect. No funny moves. No complicated procedure. Beau has also created a method to perform a version of this effect on the SPECTATOR'S PHONE!