Ever forget what day of the week it is? I've never been particularly talented when it comes to time-management, but working nights has not helped.
Perhaps it's the fact that when I leave for work, it's Wednesday, but when I come home from work, it's now Thursday. Maybe it's how magically, every single night, I have to change the date on my charting when the clock turns over from 2359 to 0000. Or even the fact that on occasion, (this is Oregon I'm talking about) I have left for work, worked twelve or thirteen hours, returned from work, and then awakened after sleeping for several hours without seeing a single ray of sunshine!
When you're doing a neurological assessment on patients, it's important to make certain they're "oriented" to person, place/situation, and time. This means that my patient who answered the orientation questions with "Paul Revere," "1956," and "Amityville, Texas" was "oriented times zero." (To be fair, "Mr. Revere" had experienced such a catastrophic stroke that we were delighted that he was talking at all, regardless of whether or not he made sense.)
I know who I am, where I'm at, and (usually) what's going on, but without Microsoft's calendar on every computer, I don't have a prayer of guessing the day correctly. Guess I'm "oriented times two."