I have a specific view where I want to show the timestamp, but I don't want it for every chat message. Is there a special code (like {timestamp} or such) that I can include in the Output Format field?

The $t variable in the output format should work.

I tried that (here is what I have in the output): Imgur Link

All that happens in chat is the literal characters "$t" and then the rest of the message. I'm on 1.12.2, by the way.

I scoured the code looking to see where it might be, and couldn't find anything.

Sorry, it's ${t}