On September 23, generally around the autumnal equinox, there are approximately 6 hours between sunrise and solar noon due to the nearly equal length of day and night on this date.
The question pertains to the duration of time between sunrise and solar noon on September 23, which is around the date of the autumnal equinox. On this date, the Sun is on the celestial equator, and as a result, it is generally true that every place on Earth experiences approximately 12 hours of daylight and 12 hours of night.
Since the duration of daylight is evenly split, there would be about 6 hours from sunrise to solar noon, assuming sunrise is around 6 a.m. and solar noon is around 12 p.m.
This is an approximation as the actual time can vary slightly depending on one's longitude and specific local timekeeping practices.