It appears to be a type of light object that moves very quickly. The light slowly zooms up in the distance, stops for a moment and then flies away.
The object was traveling at very high rate of speed without the time lapse footage, so I don't think anyone would have noticed it in the sky.
See my video footage from the time lapse. I do not normally care about this type of thing or would ever been looking for it. It was just by chance I captured this moment and document footage to share.