Neighbors Dog

I just moved into my first solo apartment. I've been here about a month.

Recently, idk if it's a new, their dog will bark all the time.

I'm posting this at 1030-1045 at night and it has been baking for 2.5, going on 3 hrs. This has been happening for at least a week. I think it only barks when one of them isn't home. I don't want to be "that" neighbor but after listening to people talk loudly and yell all day with co workers on speaker phones all day, I just desperately want quiet when I get home.

Edit: I am the quiet neighbor, I walk very quietly and don't make any excess noise, I even walk around outside of the apartment/in my car for phone calls.

How long should I let this go on before I say something to the office? When I first got here, it was quiet and I immediately fell in love with it. Now I lay awake wondering if I made the right decision.