In the script it is punctuated, “Twenty-two, eighty-three...” That suggests a stardate, FWIW.
I don't see why you'd think that. Stardates use periods (or rather, decimal points), not commas. And scripts are written for the benefit of cast and crew, not the viewers. Any punctuation in a script would be either a line-reading suggestion for the actor or a typo. Typos are quite common in scripts, since they aren't really meant to be seen. As long as the actor and the filmmakers understand what you meant, it doesn't matter if you spell or punctuate it correctly. So you really can't read anything into a stray comma in a script, even if commas did have anything to do with stardates, which they don't.