My sense of time is all over the place. When I'm hyper-focused, no time really seems to pass at all, I'm not sure I'd even understand the concept, sometimes. My autobiographical memory is rather like described by some of the earlier posters - unless it's attached to a particular dated event, I have no idea whether something happened yesterday, last week, a month ago, or even many years ago. Working out what day of the week it is can be impossible without a calendar or my phone to hand, and if I look outside and see that there are no leaves on the trees, I can be confused whether Christmas has even been yet, or whether I'm thinking of one from a few years ago.
I don't really mind it too much, apart from when it gets me into trouble because I promised to do something "tomorrow" or "in a few days", and then get told off weeks later for not doing it, still thinking that I had plenty of time. I try to write down any deadlines I'm given, and set reminders on my PC/phone etc., which sorts out the worst of the problem.
_________________
When you are fighting an invisible monster, first throw a bucket of paint over it.