Here are some other ways to say it:
* Panahon ng pagdadalaga/pagbibinata (literally "time of womanhood/manhood")
* Panahon ng paglaki (literally "time of growth")
* Panahon ng pagbabago (literally "time of change")
* Pagbibinata/pagdadalaga (the word itself is often used as a noun)
The best translation will depend on the specific context.