Hiro can 'stop' time, causing the rest of the world to freeze while he can still move. When time is frozen this way, Hiro can still interact with objects (including people) without "unfreezing" them. Hiro can also slow and reverse time.
Hiro can also move himself and another person into the future or past. If moving into the past, he can alter history and both Hiro and Future Hiro have mentioned that careless use of time travel could cause a rift.
All of Hiro's space-time manipulation abilities require intense concentration and although stressful events and practice have helped Hiro to develop his focus, he still lacks full control.

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Then he would go after Hiro and take that power for himself. At the moment Syler is unaware of Hiros gift.It will be Peter who defeats Syler for sure
it would be so cool to stop time
you could save so many people