I remarked a few days ago that the clock on City Hall was broken. It remains stopped at what appears to be 2:48. What threw me for a loop yesterday was that I had reason to be near City Hall at noon. The chimes of the clock sounded at what seemed to be the appropriate time.
So it seems that I am somehow stuck in time when I am at my desk, but when I venture out into the world, time resumes its normal flow.