Hi Glen and welcome to planDisney!
You have picked a great time of year to visit
Walt Disney World. The end of November/beginning of December usually offers lovely weather without the intense heat and humidity you find during the Summer months. The crowds are also typically manageable before increasing as Christmas gets closer and then Guests arrive to ring in the New Year.
Did you know, Glen, that
Mickey's Very Merry Christmas Party will be taking place during your visit? This is one of my favourite Special Events and the absolute best way to get into the spirit of the season if you ask me.
Top Tip - Keep an eye on the
Disney Parks Blog for more information about what to expect and when tickets will go on sale for Mickey's Very Merry Christmas Party as well as other exciting news and announcements from Walt Disney World.
Going back to your question, the
UK and Ireland Exclusive 14-day Disney Magic Tickets are indeed valid for use over an 18-day window.
If the start date of your ticket is 22 November, the usage window will be from 22 November - 9th December inclusive so, this would enable you to use your ticket on the 9th December assuming that you had a day of admission remaining at that point.
I hope that this has answered your question, Glen. Please feel free to re-visit us, here at planDisney, if we can be of any further help with the planning of your trip.
Wishing you a magical holiday filled with memories which will last a lifetime!
Emma