Will some pheonos finish faster than others?

So I'm running two Belka from seed, my question is will some pheonos finish faster than others? One of them has about 20 percent amber trichomes while the other has only about 1 percent.

Certainly as most strains today are hybrids, meaning more than likely theyre a mix of sativa and indica parents..
The offspring that lean more towards the indica parent will finish sooner, and the ones leaning more toward the sativa parent will finish later..
They don't even have to be indica leaning or sativa leaning and one may finish sooner..