The Aeta Time Bomb is designed as a weapon for the Aeta to manipulate the flow of time. When activated, the Time Bomb can transport the victim (or the user) to a set coordinate in time to transfer them to a different date.
The top scientists in the Aeta developed these as a useful tool to transport troops back in time to provide reinforcements when we failed a firefight, or a battle, etc.
The Time Bombs use a rupture of timespace created by a solar flare impacting the atmosphere's magnetic field. It harvests that incredible energy and controls that rupture in an equilibrium state, for the next time the Time Bomb is used. It has a computerized controller that maintains the system to prevent the Time Bomb from being sent to the wrong point in time.