Their on their website
Check the website
If you're checking online, I'm not sure when the update that. But if you use the Fandango app on your phone it shows all movie times for over a week or two. Depends on the movie/theater, but Nashua Chunky's has show times listed until March on Fandango for some of the movies.
Usually by Thursday on https://www.chunkys.com. Earlier for special events.
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