How does time travel actually work?

How does time travel actually work?....
.....
.....
.....
#beantarikshyatri
#sciencefacts
#sciencenews
#earth
#earthscience
#scienceexperiment
#facts
#factvideo
#factshorts
#factsinhindi
#interestingfacts
#unknownfacts
#knowledge
#knowledgefacts
#knowledgeable
#knowledgeispower
#generalknowledge
#information
#news
#breakingnews
#newsvideo
#shorts
#shortvideo
#shortsfeed
#trending