The word for "now" in Colombia

The word "now" in Colombia is most interesting.
The original word in Spanish is "ahora".
But that doesn't mean you should use this word if you want to say "now".
The word you should use is "already". In Spanish, it is "ya".
Here, "ahora" means "a little later". (can be anything between 15 min and 2 hours)
If you want to say "in fifteen minutes", use "ahorita".

Summing up:

"Now" = "Ya"
"In 15 min" = "Ahorita"
"In an hour" = "Ahora"

Then, of course, if you want to say, "Immediately", that would be "ya ya".