Majority of my work is in one area code, which I only answer 6-6 Monday to Friday. Mobiles-if I don't know them I'll answer if I'm not doing anything.
Emails-even in the middle of the night, if I'm up checking-doesn't matter when it's sent.
Could be a night worker. Some if my customers work nights but I've never met them. Great customers.
No right or wrong on this I don't think