A sure sign that we're getting close is the equipment. The hallways of the BBC's Washington News bureau are lined with open shipping cases, coiled wires and bits of electronic gear sticking out, as an extremely small but skilled team of engineers again transforms this newsgathering office into a production centre.
What is normally a small conference room is becoming a technical control room. The studio from which our World News America programme is broadcast is now being re-fitted to accommodate everything from Hardtalk to Newsnight as well.
And everyone from Huw Edwards and Matt Frei to camera and sound people are digging through their closets trying to find their warmest clothes, because they'll be spending many hours braving the elements on camera platforms and along parade routes. Dress in layers, folks.
The inauguration of an American president is a carefully scripted event, planned down to the minute. The US Constitution requires that Barack Obama be sworn in at precisely noon on 20 January, and so he shall be, like 43 others before him.
But there are several ways in which this time will be different from all the rest. The most obvious, of course, is that no one who looks like Barack Obama - and no one with anything like his story - has ever taken the oath.
And many believe that when it's over, more people will have witnessed this inauguration in person than any previous presidential swearing-in. Three million? Five million? Who knows? There will never be a precise count.
Extraordinary measures are being taken to accommodate - and control - the enormous crowds. Most of the bridges into DC will be closed to vehicles. The BBC bureau is located within the "no drive" zone...most of us will be walking here from wherever we live.
I know for sure that most spare bedrooms in most DC area homes are already spoken for. Ours certainly is; the daughter of a good friend asked weeks ago if she and one of her college chums could sleep in our guest room. Of course! That sort of thing is happening all over town.
It will be an exciting day. I just hope I can get to work!
Rome Hartman is executive producer of BBC World News America.