CX-A330
Great, I think I know what you're trying to ask...
As a S/O (second officer) - after you join CX, you can plan on at least 4 years as a S/O.
It can be as much as 5 years, but expect at least 4 years.
The hours you "fly" as a second officer "count" for almost nothing for a higher licence. The ratio of actual hours flown to hours counting is 1:4. Assume you "fly" 650 hours each year for 4 years, all you will count to a higher licence is 650 hours.
OK, assume you convert to Junior First Officer after 4 years, but the time your conversion is finished, you will have about 300 hours as JFO, 650 hours as S/O and 240 hours from your cadet program, total 1190 hours.
You need about 2500 hours to be competitive for other airlines, that would mean an additional 1300 hours as a F/O, about another 2 years.
Your total time in CX would be about 6 years, the same time as the bond ends.
I hope this answers your question.
Good luck and well done!