Warrior381,
You are in luck. Your local hardware store has the device you are looking for in the form of a rubber mallet. A sharp impact from a rubber mallet to the cranial region will cause a perceptual jump in time lasting from a mere fraction of a second to years in duration. Time travel durations are only limited by the strength of the blow, and the physical fortitude of the traveler. Natural lifespan limits, and quality of local health care facilities may also prove to be mitigating factors.
Side effects are generally mild and may include: headache, nausea, and disorientation. There are some cases of severe trauma and fatalities associated with this method of time travel, so please consult your primary physician before attempting.
Good Luck,
DS638