I have a habit of texting people at all hours of the day and night. I personally turn my phone off when I do not want any incoming messages. It is about time I asked what is the etiquette for texting these people and how late:

-girls I am not trying to bootycall (logistics texts, conversational)

-professional contacts

-friends

Also, If a new girl I have not fucked yet is responding to conversational/logistics texts late at night (after 11 PM) (not an obvious heyyyy type thing) should I consider that she may be open to a booty call (i usually send a why are u up so late to probe for that)