How do you say: "By the time that" in Spanish?

Question

Como se dice: "By the time that" en espanol?

In the context: By the time that we were sixteen, we had already traveled.

Thank you

Answer 1

A los dieciseis años ya habíamos viajado.

Answer 2

Para cuando teniamos dieciseis, nosotros ya habiamos viajado.

Answer 3

Para cuando

By the time we were sixteen, we had already traveled.

Para cuando tuvimos dieciseis años, ya habíamos viajado.

Answer 4

You could say: "Para cuando teníamos 16 años, ya habiamos viajado".

Answer 5

Another way of saying it:

"En la época en que teníamos 16 años, ya habíamos viajado".

Answer 6

"Para cuando" teniamos dieciseis, ya habiamos viajado. "Para cuando" being "by the time that"