There are many in the academic community that propose theories. It's like they are paid to point us in any direction other than the truth. I've done lots of experiments looking for any indication that local time is being affected. Nothing so far. I don't think electromagnetic phenomena has anything to do with the function of time.
time is a human construct aliens dont use it they dont even wear watches and they are more advanced there methods of time travel are so adavanced traveling from one pioriod to another we call time travel as we go by time of watches made by man
Aside from people like Mallett, I'd suggest that anyone studying the field of physics or understanding space-time is contributing to that outcome. Anyone playing with electromagnets or frequencies or vibrations might stumble upon something too - The coolest stuff happens by accident in someone's garage.