Do you know the title of this short story?

There's a story I read many years ago, and I can't remember the title or author. I'm going to describe the parts I can remember. If anyone knows the story, I would appreciate some help finding it.



The story is about a man who follows the same routine every day. Everything was done precisely down to the second. One of his activities that I remember most is walking through his neighborhood. It was a small neighborhood, with a low population. The man begins to notice the world changing around him in ways that he can't explain. Time seems to be altering in some way. I remember that clocks were a very important part of the story. The changes that were happening can be best described as the following: reality was breaking down, shifting into non-existence. It was, however, getting replaced by another reality, one containing large skyscrapers and futuristic technology that he didn't recognize. It was as if two universes were colliding or crossing paths. In the end, the man sat in his chair, watching the world around him dissolve. He was eventually consumed, and that's where his story ended. It was a terrifying story, and it was written very well.

Hopefully someone can help me find this story. I would love to read it again. Thank you!