Mexico borders "America", the country officially known as the United States of America. Hence, this time could take from a couple of minutes walking, to several hours by car, boat or plane.
This depends on how fast you travel.
Hitler is Scary
Mexico touches the Caribbean; hence time/distance is zero.
It takes approximately two weeks to travel from England to America by ship.
10 weeks
It depends on the route you take, but you need to travel across most of Central and South America.
6 months
It would take you about 11 hours and 30 minutes for you to travel from San Antonio, TX to Torreon, Mexico.
That would depend upon where you are traveling from and the method of travel.
The flight will take 2h 41min. I used the travel calculator online (TravelMath).
It takes 10 hours on a direct flight.
5 to 6 hours