What are you suggesting should be considered early?
I used to work nights 11pm to 7 am. Typically I would sleep noon to 8 pm. Regardless of my effed up sleep schedule, I still understood that "early" meant "early in the day", and that whenever I slept wasn't really related to what was considered "early" for most people. You've stated your waking time, bit not what you consider "early".
For me honestly 10 is early. It’s like I can get up at 10 but not enjoying it. 11 is for me what for most people is probably like 8am. Waking up before that is torture. I think it should be up to everyone individually to decide what’s early for them but I definitely disagree with the original comment that 10 am isn’t early by anyone’s definition.
I used to work 11pm to 7 am. Typically I would sleep noon to 8 pm. Regardless of my effed up sleep schedule, I still understood that "early" meant "early in the day", and that whenever I slept wasn't really related to what was considered "early" for most people.