[Because specifics help, an actual conversation I had with an employer at age 25 or 26]
BOSS: We’re asking people to come in this weekend.
PAUL: I could come in Sat, so when should I take the day off to make up for it?
BOSS: We don’t do comp time.
PAUL: And I don’t work weekends, but I’m sure we can work out an arrangement.
[Spoiler: we worked out an arrangement]