Unable to use Week

I have a trip plan from December 24, 2023 to December 31, 2023. We are unable to go. Our timeshare is located in Las Vegas. Is it too late to rent it out?

It's not too late although at this late stage, you might find it hard to find a renter. You can try listing it for free on Timeshare Users Group (aka "TUG"; tugbbs.com) in the Last Minute Rentals section. You can also list it for rent here on RedWeek if you are a member.