How long does it take for your body to get used....?

Question

to waking up early (6:40) how many days for your body to wake up at that time and feel awake?

Answer 1

Never, haha. Actually, I'm not sure.

I've been waking up at 4:00AM for the past three years and my body is still angry at me in the morning.  

Answer 2

well I wake up at 5:30 for school and I am never "ready" to get up. But the first like week is horrible but now i am pretty used to it because you just gotta deal. it's really not that bad

Hope i could help