I've been a night owl all my life. I'm always up late at night.
Same here!  I usually stay up until 2 AM!
I'm usually up until 4AM! I could never be an early bird. I can't go to bed or wake up early. I've tried!
Wow!  You are a night owl!  What time in the morning do you have to wake up to be considered an early bird?
Someone who sleeps at a time that tends to be considered early by most in the same time zone are typically called early birds.
I think a lot of older people are early birds.  One of my older coworkers told me he wakes up at 4 AM.
In some countries they call early birds "A-people" and night owns "B-people". Pretty weird, huh?
That's interesting!  I have never heard that.  I much prefer our term.
Researchers traditionally use the terms "morningness" and "eveningness" for the two chronotypes or diurnality and nocturnality in animal behavior. In several countries, especially in Scandinavia, early birds are called "A-people" and night owls are called "B-people".
Etymology.
The term is derived from the primarily nocturnal habits of the owl. Most owls sleep during the day and hunt for food at night.
Characteristics.
Usually, people who are night owls stay awake past midnight, and extreme
long-term commitment to the music industry in an interview:
When I play, I am very much in the space where I was when I wrote the music. You could slay me quite easily, I'm at my most vulnerable. I am very private, in all aspects of my life, to everybody, so why is it that I get up on stage every night and open myself in front of strangers? I'm not sure if I've got the bottle for it, any more.
Marling