What is "early-morning hour"

Usage examples of "early-morning hour".

The garden was formal and well kept and, in this early-morning hour, had a softness to it.

There were even fewer people about at this early-morning hour than there had been in south Dahl.

Despite the early-morning hour she was dressed as if she were about to go to a fashion show, and her hair looked as if she'd just emerged from a beauty salon.