When a publisher says you need to approve copy edits within 48 hours, it's perfectly fine to say "No, I'll get back to you in a couple weeks."

Don't ever ever ever give up your free time for a non-existent deadline.

#AcademicPublishing

@sharoz especially because the proofs usually just pop into our inboxes without advance notice...
@yanghu Yup! Friday evening. December 23rd. On the way to the airport for a vacation. Doesn't matter. 48 hours! Pfff.