Having sex with someone during the day, usually a secret, that is not your significant other. Having sex with someone before going home to another person for the night.
We have daytime sex behind the office, then go about our daily lives.
We had to have daytime sex, so that way we wouldn't get caught sneaking out at night trying to have sex.
A state of altered perception of time in which it is later than you think it is, caused by staying up till 2 AM or later and getting less than 10 hours of sleep