I wouldn't go jumping up and down, calling in or flexing the contract in your SUP face until you get conformation that your made your 30 days. If you don't want to ask then wait and if your still working in Jan you made it.
I hope you noticed how this one did not get many responses. "Union" seems to not be a good thing to mention around here. On another note, not sure how to answer your question without more information. Where I am from, thirty calendar days and you are IN!