My phone is on 24/7 because of my Mother's LifeLine.  I don't take calls before 9am nor do I answer after 9pm unless it is her emergency number.  Most people know not to even think about calling me before 10 am though!  I don't do mornings.  (me and Garfield!)

No. I try to reserve my cell phone for emergency calls. I have never published my cell number and it has never appeared on business cards. I receive an email when a message is left on my office phone (the message is attached).

The phone calls start around 8:00 and stop around 8:00 at night. If I have something really urgent I will call earlier and later. 

I've had calls come in as early as 7am and the caller has been in my time zone. I could understand if it was from another time zone. Sometimes people don't think about the time difference when making a call. I've had calls come in around 11PM, too. I don't usually answer those calls. 

I have phone put on sleep for 10pm and wake 7am.  That way if my phone does ring, I wont hear it.  Otherwise I am answering questions literally all day and night.

Very early and very late.

I won't answer after 7.

My phone starts at 8AM and ends about 9PM some nights.

Paul - I wish my cell phone would ring a little more, but would prefer between the hours of about 7am to 6pm. I will answer it any time I am not doing something with the family.

Evelyn's phone starts ringing at 8 am and rings up to 10 pm.  Mine just vibrates.

Like Spirit Messingham I set my Android to wake at 7 am and sleep at 10 pm, but rarely pick up before 7:45 am or after 7 pm. I'm laughing about people getting "early" calls at 7 am. Being 6 hours earlier than East Coast here in Hawaii we regularly get called at 3 or 4 am. Yes, I do turn off our phones at night!

around 8 am to 9 pm 

8:30 am and 9 pm.  But I had one buyer who would call me at midnight.

8-8 for business, unless its an emergency then I'll call back.

I turn mine on at 8 am, and shut it off somewhere between 8:30 and 9:00 pm.   Of course, that can change if there is negotiating needed or need to talk to a client.

9 am to 9 pm. Spend time with the family more though.

Our phone starts ringing at 6am and doesn't stop until around 9pm

My phone starts about 8:30 - 9 AM. I shut it down at 8 PM...but every once in awhile someione calls in about 10 PM.