With this python script, you will be able to calculate the real-time on a person that speed = X
You can select 5 Languages. English, Spanish, Russian, French, and Deutsch
Take in mind that you will see how the time decreases more potentially at around 80% of the speed of light. C (Speed of Light) is equal to 1 080 000 000 km/h = 299 792 458 m/s
python3 timetravel.pyc Just select your preferred language and put the selected languages.